Data sources

Every number TractEngine reports names the dataset it came from. This is the list of the 285 datasets in the mirror, with the vintage of each and the date it was retrieved. All are public sources; none is licensed from a map vendor.

Soils: NRCS gSSURGO

Dataset	Vintage	Retrieved	Licence
gSSURGO soil interpretations and hydric / drainage attributes, ID `gssurgo_id_interp`	gSSURGO ID release 2026-10-26	2026-11-12	US federal public domain
gSSURGO map unit attributes, ID `gssurgo_id_mapunit`	gSSURGO ID release 2026-10-26	2026-10-29	US federal public domain
gSSURGO map unit polygons, ID `gssurgo_id_mupolygon`	gSSURGO ID release 2026-10-26	2026-10-29	US federal public domain
gSSURGO soil interpretations and hydric / drainage attributes, MA `gssurgo_ma_interp`	gSSURGO MA release 2026-09-29	2026-11-13	US federal public domain
gSSURGO map unit attributes, MA `gssurgo_ma_mapunit`	gSSURGO MA release 2026-09-29	2026-11-13	US federal public domain
gSSURGO map unit polygons, MA `gssurgo_ma_mupolygon`	gSSURGO MA release 2026-09-29	2026-11-13	US federal public domain
gSSURGO soil interpretations and hydric / drainage attributes, ME `gssurgo_me_interp`	gSSURGO ME release 2026-09-29	2026-11-12	US federal public domain
gSSURGO map unit attributes, ME `gssurgo_me_mapunit`	gSSURGO ME release 2026-09-29	2026-11-11	US federal public domain
gSSURGO map unit polygons, ME `gssurgo_me_mupolygon`	gSSURGO ME release 2026-09-29	2026-11-11	US federal public domain
gSSURGO soil interpretations and hydric / drainage attributes, NH `gssurgo_nh_interp`	gSSURGO NH release 2026-09-29	2026-11-13	US federal public domain
gSSURGO map unit attributes, NH `gssurgo_nh_mapunit`	gSSURGO NH release 2026-09-29	2026-11-13	US federal public domain
gSSURGO map unit polygons, NH `gssurgo_nh_mupolygon`	gSSURGO NH release 2026-09-29	2026-11-13	US federal public domain
gSSURGO soil interpretations and hydric / drainage attributes, OR `gssurgo_or_interp`	gSSURGO OR release 2026-09-29	2026-11-13	US federal public domain
gSSURGO map unit attributes, OR `gssurgo_or_mapunit`	gSSURGO OR release 2026-09-29	2026-11-13	US federal public domain
gSSURGO map unit polygons, OR `gssurgo_or_mupolygon`	gSSURGO OR release 2026-09-29	2026-11-13	US federal public domain
gSSURGO soil interpretations and hydric / drainage attributes, VT `gssurgo_vt_interp`	gSSURGO VT release 2026-10-28	2026-11-13	US federal public domain
gSSURGO map unit attributes, VT `gssurgo_vt_mapunit`	gSSURGO VT release 2026-10-28	2026-11-13	US federal public domain
gSSURGO map unit polygons, VT `gssurgo_vt_mupolygon`	gSSURGO VT release 2026-10-28	2026-11-13	US federal public domain
gSSURGO soil interpretations and hydric / drainage attributes, WA `gssurgo_wa_interp`	gSSURGO WA release 2026-09-29	2026-11-12	US federal public domain
gSSURGO map unit attributes, WA `gssurgo_wa_mapunit`	gSSURGO WA release 2026-09-29	2026-10-29	US federal public domain
gSSURGO map unit polygons, WA `gssurgo_wa_mupolygon`	gSSURGO WA release 2026-09-29	2026-10-29	US federal public domain

Flood: FEMA National Flood Hazard Layer

Dataset	Vintage	Retrieved	Licence
FEMA NFHL Availability, ID `nfhl_id_availability`	service snapshot 2026-11-11	2026-11-11	US federal public domain
FEMA NFHL S_BFE, ID `nfhl_id_bfe`	NFHL county files, newest 2026-10-28 (16 of 44 counties; oldest 2022-11-16)	2026-11-11	US federal public domain
FEMA NFHL S_FIRM_PAN, ID `nfhl_id_firm_pan`	NFHL county files, newest 2026-10-28 (16 of 44 counties; oldest 2022-11-16)	2026-11-11	US federal public domain
FEMA NFHL S_FLD_HAZ_AR, ID `nfhl_id_fld_haz_ar`	NFHL county files, newest 2026-10-28 (16 of 44 counties; oldest 2022-11-16)	2026-11-11	US federal public domain
FEMA FIRM panel GeoIndex (printed, paper and unmapped panels), ID `nfhl_id_geoindex`	service snapshot 2026-11-11	2026-11-11	US federal public domain
FEMA NFHL S_LOMR, ID `nfhl_id_lomr`	NFHL county files, newest 2026-10-28 (16 of 44 counties; oldest 2022-11-16)	2026-11-11	US federal public domain
FEMA pending NFHL study areas, ID `nfhl_id_pending`	service snapshot 2026-11-11	2026-11-11	US federal public domain
FEMA NFHL S_POL_AR, ID `nfhl_id_pol_ar`	NFHL county files, newest 2026-10-28 (16 of 44 counties; oldest 2022-11-16)	2026-11-11	US federal public domain
FEMA NFHL Availability, MA `nfhl_ma_availability`	service snapshot 2026-11-13	2026-11-13	US federal public domain
FEMA NFHL S_BFE, MA `nfhl_ma_bfe`	NFHL 2026-10-23	2026-11-13	US federal public domain
FEMA NFHL S_FIRM_PAN, MA `nfhl_ma_firm_pan`	NFHL 2026-10-23	2026-11-13	US federal public domain
FEMA NFHL S_FLD_HAZ_AR, MA `nfhl_ma_fld_haz_ar`	NFHL 2026-10-23	2026-11-13	US federal public domain
FEMA NFHL S_LOMR, MA `nfhl_ma_lomr`	NFHL 2026-10-23	2026-11-13	US federal public domain
FEMA NFHL S_POL_AR, MA `nfhl_ma_pol_ar`	NFHL 2026-10-23	2026-11-13	US federal public domain
FEMA NFHL Availability, ME `nfhl_me_availability`	service snapshot 2026-11-11	2026-11-11	US federal public domain
FEMA NFHL S_BFE, ME `nfhl_me_bfe`	NFHL 2026-10-01	2026-11-11	US federal public domain
FEMA NFHL S_FIRM_PAN, ME `nfhl_me_firm_pan`	NFHL 2026-10-01	2026-11-11	US federal public domain
FEMA NFHL S_FLD_HAZ_AR, ME `nfhl_me_fld_haz_ar`	NFHL 2026-10-01	2026-11-11	US federal public domain
FEMA FIRM panel GeoIndex (printed, paper and unmapped panels), ME `nfhl_me_geoindex`	service snapshot 2026-11-11	2026-11-11	US federal public domain
FEMA NFHL S_LOMR, ME `nfhl_me_lomr`	NFHL 2026-10-01	2026-11-11	US federal public domain
FEMA pending NFHL study areas, ME `nfhl_me_pending`	service snapshot 2026-11-11	2026-11-11	US federal public domain
FEMA NFHL S_POL_AR, ME `nfhl_me_pol_ar`	NFHL 2026-10-01	2026-11-11	US federal public domain
FEMA NFHL Availability, VT `nfhl_vt_availability`	service snapshot 2026-11-13	2026-11-13	US federal public domain
FEMA NFHL S_BFE, VT `nfhl_vt_bfe`	NFHL 2026-06-26	2026-11-13	US federal public domain
FEMA NFHL S_FIRM_PAN, VT `nfhl_vt_firm_pan`	NFHL 2026-06-26	2026-11-13	US federal public domain
FEMA NFHL S_FLD_HAZ_AR, VT `nfhl_vt_fld_haz_ar`	NFHL 2026-06-26	2026-11-13	US federal public domain
FEMA FIRM panel GeoIndex (printed, paper and unmapped panels), VT `nfhl_vt_geoindex`	service snapshot 2026-11-13	2026-11-13	US federal public domain
FEMA NFHL S_LOMR, VT `nfhl_vt_lomr`	NFHL 2026-06-26	2026-11-13	US federal public domain
FEMA pending NFHL study areas, VT `nfhl_vt_pending`	service snapshot 2026-11-13	2026-11-13	US federal public domain
FEMA NFHL S_POL_AR, VT `nfhl_vt_pol_ar`	NFHL 2026-06-26	2026-11-13	US federal public domain
FEMA NFHL Availability, WA `nfhl_wa_availability`	service snapshot 2026-10-28	2026-10-28	US federal public domain
FEMA NFHL S_BFE, WA `nfhl_wa_bfe`	NFHL county files, newest 2026-09-29 (23 of 39 counties; oldest 2007-08-20)	2026-10-28	US federal public domain
FEMA NFHL S_FIRM_PAN, WA `nfhl_wa_firm_pan`	NFHL county files, newest 2026-09-29 (23 of 39 counties; oldest 2007-08-20)	2026-10-28	US federal public domain
FEMA NFHL S_FLD_HAZ_AR, WA `nfhl_wa_fld_haz_ar`	NFHL county files, newest 2026-09-29 (23 of 39 counties; oldest 2007-08-20)	2026-10-28	US federal public domain
FEMA FIRM panel GeoIndex (printed, paper and unmapped panels), WA `nfhl_wa_geoindex`	service snapshot 2026-10-28	2026-10-28	US federal public domain
FEMA NFHL S_LOMR, WA `nfhl_wa_lomr`	NFHL county files, newest 2026-09-29 (23 of 39 counties; oldest 2007-08-20)	2026-10-28	US federal public domain
FEMA pending NFHL study areas, WA `nfhl_wa_pending`	service snapshot 2026-10-28	2026-10-28	US federal public domain
FEMA NFHL S_POL_AR, WA `nfhl_wa_pol_ar`	NFHL county files, newest 2026-09-29 (23 of 39 counties; oldest 2007-08-20)	2026-10-28	US federal public domain

Wetlands: USFWS National Wetlands Inventory

Dataset	Vintage	Retrieved	Licence
USFWS National Wetlands Inventory wetlands, ID `nwi_id`	NWI state download, ID_Wetlands last_change 2026-10-08	2026-10-28	US federal public domain
USFWS National Wetlands Inventory wetlands, MA `nwi_ma`	NWI state download, MA_Wetlands last_change 2026-10-09	2026-11-13	US federal public domain
USFWS National Wetlands Inventory wetlands, ME `nwi_me`	NWI state download, ME_Wetlands last_change 2024-10-20	2026-11-11	US federal public domain
USFWS National Wetlands Inventory wetlands, VT `nwi_vt`	NWI state download, VT_Wetlands last_change unknown	2026-11-13	US federal public domain
USFWS National Wetlands Inventory wetlands, WA `nwi_wa`	NWI state download, WA_Wetlands last_change 2024-10-21	2026-10-28	US federal public domain

Crop history: NASS Cropland Data Layer

Dataset	Vintage	Retrieved	Licence
USDA NASS Cropland Data Layer 2008, ID `cdl_id_2008`	CDL 2008 (NASS CropScape state file, Last-Modified 2018-01-24)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2009, ID `cdl_id_2009`	CDL 2009 (NASS CropScape state file, Last-Modified 2018-01-24)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2010, ID `cdl_id_2010`	CDL 2010 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2011, ID `cdl_id_2011`	CDL 2011 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2012, ID `cdl_id_2012`	CDL 2012 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2013, ID `cdl_id_2013`	CDL 2013 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2014, ID `cdl_id_2014`	CDL 2014 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2015, ID `cdl_id_2015`	CDL 2015 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2016, ID `cdl_id_2016`	CDL 2016 (NASS CropScape state file, Last-Modified 2017-04-14)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2017, ID `cdl_id_2017`	CDL 2017 (NASS CropScape state file, Last-Modified 2018-01-31)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2018, ID `cdl_id_2018`	CDL 2018 (NASS CropScape state file, Last-Modified 2019-02-18)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2019, ID `cdl_id_2019`	CDL 2019 (NASS CropScape state file, Last-Modified 2020-03-24)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2020, ID `cdl_id_2020`	CDL 2020 (NASS CropScape state file, Last-Modified unknown)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2021, ID `cdl_id_2021`	CDL 2021 (NASS CropScape state file, Last-Modified unknown)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2022, ID `cdl_id_2022`	CDL 2022 (NASS CropScape state file, Last-Modified 2023-03-09)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2023, ID `cdl_id_2023`	CDL 2023 (NASS CropScape state file, Last-Modified 2024-04-25)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2024, ID `cdl_id_2024`	CDL 2024 (NASS CropScape state file, Last-Modified 2025-03-03)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2025, ID `cdl_id_2025`	CDL 2025 (NASS CropScape state file, Last-Modified 2026-03-05)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer legend (codes, class names, colours, categories) `cdl_legend`	NASS CDL legend as published 2026-10-28	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2008, MA `cdl_ma_2008`	CDL 2008 (NASS CropScape state file, Last-Modified 2018-01-24)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2009, MA `cdl_ma_2009`	CDL 2009 (NASS CropScape state file, Last-Modified 2018-01-24)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2010, MA `cdl_ma_2010`	CDL 2010 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2011, MA `cdl_ma_2011`	CDL 2011 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2012, MA `cdl_ma_2012`	CDL 2012 (NASS CropScape state file, Last-Modified 2017-05-28)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2013, MA `cdl_ma_2013`	CDL 2013 (NASS CropScape state file, Last-Modified 2017-05-28)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2014, MA `cdl_ma_2014`	CDL 2014 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2015, MA `cdl_ma_2015`	CDL 2015 (NASS CropScape state file, Last-Modified 2017-06-12)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2016, MA `cdl_ma_2016`	CDL 2016 (NASS CropScape state file, Last-Modified 2017-04-12)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2017, MA `cdl_ma_2017`	CDL 2017 (NASS CropScape state file, Last-Modified 2018-02-01)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2018, MA `cdl_ma_2018`	CDL 2018 (NASS CropScape state file, Last-Modified 2019-02-25)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2019, MA `cdl_ma_2019`	CDL 2019 (NASS CropScape state file, Last-Modified 2020-04-22)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2020, MA `cdl_ma_2020`	CDL 2020 (NASS CropScape state file, Last-Modified 2022-03-10)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2021, MA `cdl_ma_2021`	CDL 2021 (NASS CropScape state file, Last-Modified 2022-02-15)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2022, MA `cdl_ma_2022`	CDL 2022 (NASS CropScape state file, Last-Modified 2023-03-12)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2023, MA `cdl_ma_2023`	CDL 2023 (NASS CropScape state file, Last-Modified 2024-05-02)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2024, MA `cdl_ma_2024`	CDL 2024 (NASS CropScape state file, Last-Modified 2025-03-03)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2025, MA `cdl_ma_2025`	CDL 2025 (NASS CropScape state file, Last-Modified 2026-03-30)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2008, ME `cdl_me_2008`	CDL 2008 (NASS CropScape state file, Last-Modified 2018-01-24)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2009, ME `cdl_me_2009`	CDL 2009 (NASS CropScape state file, Last-Modified 2018-01-24)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2010, ME `cdl_me_2010`	CDL 2010 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2011, ME `cdl_me_2011`	CDL 2011 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2012, ME `cdl_me_2012`	CDL 2012 (NASS CropScape state file, Last-Modified 2017-05-28)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2013, ME `cdl_me_2013`	CDL 2013 (NASS CropScape state file, Last-Modified 2017-05-28)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2014, ME `cdl_me_2014`	CDL 2014 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2015, ME `cdl_me_2015`	CDL 2015 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2016, ME `cdl_me_2016`	CDL 2016 (NASS CropScape state file, Last-Modified 2017-04-11)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2017, ME `cdl_me_2017`	CDL 2017 (NASS CropScape state file, Last-Modified 2018-02-01)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2018, ME `cdl_me_2018`	CDL 2018 (NASS CropScape state file, Last-Modified 2019-02-25)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2019, ME `cdl_me_2019`	CDL 2019 (NASS CropScape state file, Last-Modified 2020-03-31)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2020, ME `cdl_me_2020`	CDL 2020 (NASS CropScape state file, Last-Modified 2022-03-10)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2021, ME `cdl_me_2021`	CDL 2021 (NASS CropScape state file, Last-Modified 2022-02-15)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2022, ME `cdl_me_2022`	CDL 2022 (NASS CropScape state file, Last-Modified 2023-03-13)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2023, ME `cdl_me_2023`	CDL 2023 (NASS CropScape state file, Last-Modified 2024-04-17)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2024, ME `cdl_me_2024`	CDL 2024 (NASS CropScape state file, Last-Modified 2025-03-01)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2025, ME `cdl_me_2025`	CDL 2025 (NASS CropScape state file, Last-Modified 2026-03-13)	2026-11-11	US federal public domain
USDA NASS Cropland Data Layer 2008, VT `cdl_vt_2008`	CDL 2008 (NASS CropScape state file, Last-Modified 2018-01-25)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2009, VT `cdl_vt_2009`	CDL 2009 (NASS CropScape state file, Last-Modified 2018-01-25)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2010, VT `cdl_vt_2010`	CDL 2010 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2011, VT `cdl_vt_2011`	CDL 2011 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2012, VT `cdl_vt_2012`	CDL 2012 (NASS CropScape state file, Last-Modified 2017-05-28)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2013, VT `cdl_vt_2013`	CDL 2013 (NASS CropScape state file, Last-Modified 2017-05-28)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2014, VT `cdl_vt_2014`	CDL 2014 (NASS CropScape state file, Last-Modified 2017-07-05)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2015, VT `cdl_vt_2015`	CDL 2015 (NASS CropScape state file, Last-Modified 2017-07-09)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2016, VT `cdl_vt_2016`	CDL 2016 (NASS CropScape state file, Last-Modified 2017-07-05)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2017, VT `cdl_vt_2017`	CDL 2017 (NASS CropScape state file, Last-Modified 2018-01-31)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2018, VT `cdl_vt_2018`	CDL 2018 (NASS CropScape state file, Last-Modified 2019-02-12)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2019, VT `cdl_vt_2019`	CDL 2019 (NASS CropScape state file, Last-Modified 2020-04-22)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2020, VT `cdl_vt_2020`	CDL 2020 (NASS CropScape state file, Last-Modified 2022-03-10)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2021, VT `cdl_vt_2021`	CDL 2021 (NASS CropScape state file, Last-Modified 2022-02-15)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2022, VT `cdl_vt_2022`	CDL 2022 (NASS CropScape state file, Last-Modified 2023-03-10)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2023, VT `cdl_vt_2023`	CDL 2023 (NASS CropScape state file, Last-Modified 2024-05-07)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2024, VT `cdl_vt_2024`	CDL 2024 (NASS CropScape state file, Last-Modified 2025-03-19)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2025, VT `cdl_vt_2025`	CDL 2025 (NASS CropScape state file, Last-Modified 2026-03-30)	2026-11-13	US federal public domain
USDA NASS Cropland Data Layer 2008, WA `cdl_wa_2008`	CDL 2008 (NASS CropScape state file, Last-Modified 2018-01-11)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2009, WA `cdl_wa_2009`	CDL 2009 (NASS CropScape state file, Last-Modified 2018-01-11)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2010, WA `cdl_wa_2010`	CDL 2010 (NASS CropScape state file, Last-Modified 2017-04-28)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2011, WA `cdl_wa_2011`	CDL 2011 (NASS CropScape state file, Last-Modified 2017-04-28)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2012, WA `cdl_wa_2012`	CDL 2012 (NASS CropScape state file, Last-Modified unknown)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2013, WA `cdl_wa_2013`	CDL 2013 (NASS CropScape state file, Last-Modified unknown)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2014, WA `cdl_wa_2014`	CDL 2014 (NASS CropScape state file, Last-Modified 2017-04-28)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2015, WA `cdl_wa_2015`	CDL 2015 (NASS CropScape state file, Last-Modified 2017-04-28)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2016, WA `cdl_wa_2016`	CDL 2016 (NASS CropScape state file, Last-Modified 2017-04-17)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2017, WA `cdl_wa_2017`	CDL 2017 (NASS CropScape state file, Last-Modified 2018-02-02)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2018, WA `cdl_wa_2018`	CDL 2018 (NASS CropScape state file, Last-Modified 2019-02-12)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2019, WA `cdl_wa_2019`	CDL 2019 (NASS CropScape state file, Last-Modified 2020-03-31)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2020, WA `cdl_wa_2020`	CDL 2020 (NASS CropScape state file, Last-Modified 2022-03-08)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2021, WA `cdl_wa_2021`	CDL 2021 (NASS CropScape state file, Last-Modified 2022-02-15)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2022, WA `cdl_wa_2022`	CDL 2022 (NASS CropScape state file, Last-Modified 2023-03-13)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2023, WA `cdl_wa_2023`	CDL 2023 (NASS CropScape state file, Last-Modified 2024-04-18)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2024, WA `cdl_wa_2024`	CDL 2024 (NASS CropScape state file, Last-Modified 2025-03-01)	2026-10-28	US federal public domain
USDA NASS Cropland Data Layer 2025, WA `cdl_wa_2025`	CDL 2025 (NASS CropScape state file, Last-Modified 2026-03-05)	2026-10-28	US federal public domain

Field boundaries: NASS Crop Sequence Boundaries

Dataset	Vintage	Retrieved	Licence
USDA NASS Crop Sequence Boundaries 2018-2025, ID `csb_id`	CSB 2018-2025 rev23 (released 2026-03-27)	2026-10-28	US federal public domain
USDA NASS Crop Sequence Boundaries 2018-2025, MA `csb_ma`	CSB 2018-2025 rev23 (released 2026-03-27)	2026-11-13	US federal public domain
USDA NASS Crop Sequence Boundaries 2018-2025, ME `csb_me`	CSB 2018-2025 rev23 (released 2026-03-27)	2026-11-11	US federal public domain
USDA NASS Crop Sequence Boundaries 2018-2025, VT `csb_vt`	CSB 2018-2025 rev23 (released 2026-03-27)	2026-11-13	US federal public domain
USDA NASS Crop Sequence Boundaries 2018-2025, WA `csb_wa`	CSB 2018-2025 rev23 (released 2026-03-27)	2026-10-28	US federal public domain

Elevation: USGS 3DEP

Dataset	Vintage	Retrieved	Licence
USGS 3DEP 1/3 arc-second seamless DEM (The National Map) `dem_3dep_13`	live TNM product index; source file names and publication dates recorded per result	2026-10-28	US federal public domain
USGS 3DEP 1 m DEM (The National Map) `dem_3dep_1m`	live TNM product index; source file names and publication dates recorded per result	2026-10-28	US federal public domain

Imagery and NDVI: NAIP and Sentinel-2

Dataset	Vintage	Retrieved	Licence
Sentinel-2 L2A (Element84 Earth Search) `stac_es_sentinel2_l2a`	live STAC collection sentinel-2-l2a (2015-06-27 to present); item ids recorded per result	2026-10-28	Copernicus Sentinel data, free and open (ESA legal notice)
NAIP orthoimagery (Microsoft Planetary Computer) `stac_pc_naip`	live STAC collection naip (2010-01-01 to 2023-12-31); item ids recorded per result	2026-10-28	US federal public domain
Sentinel-2 L2A (Microsoft Planetary Computer) `stac_pc_sentinel2_l2a`	live STAC collection sentinel-2-l2a (2015-06-27 to present); item ids recorded per result	2026-10-28	Copernicus Sentinel data, free and open (ESA legal notice)

Base maps: USGS The National Map

Dataset	Vintage	Retrieved	Licence
USGS The National Map: Orthoimagery (USGSImageryOnly) `basemap_usgs_imagery`	USDA, USGS The National Map: Orthoimagery. Data refreshed June, 2024.v1.2	2026-10-28	US federal public domain
USGS The National Map: US Topo base map (USGSTopo) `basemap_usgs_topo`	USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed September 4, 2026-v1.2	2026-10-28	US federal public domain

Public Land Survey System: BLM CadNSDI

Dataset	Vintage	Retrieved	Licence
BLM CadNSDI PLSS first division, Idaho `plss_id_first_division`	service snapshot 2026-10-27	2026-10-27	US federal public domain
BLM CadNSDI PLSS second division, Idaho `plss_id_second_division`	service snapshot 2026-10-27	2026-10-27	US federal public domain
BLM CadNSDI PLSS township, Idaho `plss_id_township`	service snapshot 2026-10-27	2026-10-27	US federal public domain
BLM CadNSDI PLSS first division, Oregon `plss_or_first_division`	service snapshot 2026-11-13	2026-11-13	US federal public domain
BLM CadNSDI PLSS second division, Oregon `plss_or_second_division`	service snapshot 2026-11-13 (max SOURCEDATE 2025-05-08)	2026-11-13	US federal public domain
BLM CadNSDI PLSS township, Oregon `plss_or_township`	service snapshot 2026-11-13	2026-11-13	US federal public domain
BLM CadNSDI PLSS first division, Washington `plss_wa_first_division`	service snapshot 2026-10-28	2026-10-28	US federal public domain
BLM CadNSDI PLSS second division, Washington `plss_wa_second_division`	service snapshot 2026-10-28 (max SOURCEDATE 2022-12-06)	2026-10-28	US federal public domain
BLM CadNSDI PLSS township, Washington `plss_wa_township`	service snapshot 2026-10-28	2026-10-28	US federal public domain

BIA tracts

https://biamaps.geoplatform.gov/server/rest/services/BOGS/RTV_VIEWER/MapServer/1

Dataset	Vintage	Retrieved	Licence
BIA Mapped Tribal Tracts (Representation Tract Viewer) `bia_rtv_tracts`	live service; retrieval date and TRACTREFNUM recorded per result	2026-10-28	US federal public domain; BIA: illustrative and reference purposes only, not for legal or survey use

Tax parcels: state and county assessors

Dataset	Vintage	Retrieved	Licence
Tax parcels, Idaho (statewide mirror of free public sources) `parcels_id`	15 county layers + State of Idaho ITS snapshot (10 counties), harvested 2026-11-11 (layer edit dates 2025-04-21 … 2026-11-10)	2026-11-11	County public GIS services: no warranty; not a survey (verify with the county assessor). State of Idaho ITS Public Idaho Parcels: no warranty from ITS or the counties, use at your own risk; under Idaho Code §74-120 the data may not be used as a mailing or telephone list.
Ada County ID parcels (Ada County GIS (ArcGIS Online, AdaCountyGIS)) `parcels_id_ada`	live service; EditDate stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Bannock County ID parcels (Bannock County GIS (ArcGIS Online, parcel_public)) `parcels_id_bannock`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Bear Lake County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_bear_lake`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Benewah County ID parcels (Nez Perce County GIS Services, Region 2 multi-county parcel layer (Reg2_Parcels_20250307_VIEW)) `parcels_id_benewah`	live service; updated stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Bingham County ID parcels (Bingham County GIS (Public parcel map)) `parcels_id_bingham`	live service; Tax_Year stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Boise County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_boise`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Bonneville County ID parcels (Bonneville County GIS (ArcGIS Online, Parcel_Viewer)) `parcels_id_bonneville`	live service; last_edited_date_1 stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Boundary County ID parcels (Boundary County GIS (BC_Pub_LandRecords, Parcels)) `parcels_id_boundary`	live service; inspection_year stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Camas County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_camas`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Canyon County ID parcels (Canyon County Assessor GIS (CCPublicTaxparcels)) `parcels_id_canyon`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Clearwater County ID parcels (Clearwater County GIS (ArcGIS Online, gis_ClearwaterCounty)) `parcels_id_clearwater`	live service; last_edited_date stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Gooding County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_gooding`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Idaho County ID parcels (Idaho County GIS (ArcGIS Online, gis_idahocounty)) `parcels_id_idaho`	live service; UpdateDate stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Jerome County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_jerome`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Kootenai County ID parcels (Kootenai County GIS (Data_Layers, Parcel Polygon)) `parcels_id_kootenai`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Latah County ID parcels (Latah County GIS (Parcels3, parcels joined to the assessor tables)) `parcels_id_latah`	live service; GISParcels_dbo_pcparc00_PM_TAXYEAR stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Latah County ID parcels (Nez Perce County GIS Services, Region 2 multi-county parcel layer (Reg2_Parcels_20250307_VIEW)) `parcels_id_latah_region2`	live service; updated stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Lewis County ID parcels (Nez Perce County GIS Services, Region 2 multi-county parcel layer (Reg2_Parcels_20250307_VIEW)) `parcels_id_lewis`	live service; updated stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Lincoln County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_lincoln`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Madison County ID parcels (Madison County / City of Rexburg GIS (Data/Parcels)) `parcels_id_madison`	live service; UPDATE_ stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Minidoka County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_minidoka`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Nez Perce County ID parcels (assessor CAMA join) `parcels_id_nez_perce`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Oneida County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_oneida`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Idaho county parcel service registry `parcels_id_registry`	research 2026-10-28	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Teton County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_teton`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Valley County ID parcels (Valley County GIS (ArcGIS Online, Valley_County_Parcels_Open_Data)) `parcels_id_valley`	live service; Assmnt1D stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Washington County ID parcels (State of Idaho ITS, Public Idaho Parcels (statewide county extracts)) `parcels_id_washington`	live service; UPDATED stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Tax parcels, Maine (statewide mirror of free public sources) `parcels_me`	Maine GeoLibrary organized-town parcels (FGDB 2026-09-02, layer edited 2026-08-17; 320 towns, per-town updates 1994 … 2026, median 2011) + MRS Unorganized Territory parcels (edited 2026-10-26; 76 UTs / plantations / MRS-mapped towns), harvested 2026-11-11	2026-11-11	Maine GeoLibrary: "Access: Public. Use: User assumes risk." For assessing and planning purposes only; not survey-grade and not for conveyances; MEGIS and the GeoLibrary do not edit or verify town data and are not responsible for errors or currency. Maine Revenue Services / LUPC Unorganized Territory parcels: "Public domain."
Old Orchard Beach, York County ME parcels (town AxisGIS data sync) `parcels_me_old_orchard_beach`	live service; no per-record date; query date recorded per result	2026-11-11	county public GIS service; no warranty; not a survey (verify with the county assessor)
Maine county parcel service registry `parcels_me_registry`	research 2026-10-28	2026-11-11	county public GIS service; no warranty; not a survey (verify with the county assessor)
Tax parcels, Washington (statewide mirror of free public sources) `parcels_wa`	WaTech statewide Current Parcels (Parcels_2026, layer edited 2026-04-08; county files 2026-01-09 … 2026-03-20), harvested 2026-11-11	2026-11-11	WaTech Geospatial Open Data Portal: data provided for informational purposes only, not for legal, engineering or surveying use; no warranty of accuracy or completeness and no liability (item licenseInfo). Copyright Washington Technology Solutions (WaTech), Washington State Counties. Parcel lines are assessor cartography, not a survey.
Asotin County WA parcels (Asotin County Public Works GIS (ArcGIS Online, Parcels)) `parcels_wa_asotin`	live service; Valuation_ stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Asotin County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_asotin_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Benton County WA parcels (Benton County GIS (ArcGIS Online, Parcels and Assessor view)) `parcels_wa_benton`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Benton County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_benton_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Ferry County WA parcels (Ferry County GIS (ArcGIS Online, FC OwnerLayer)) `parcels_wa_ferry`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Ferry County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_ferry_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Franklin County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_franklin`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Garfield County WA parcels (Garfield County WA parcel map (ArcGIS Online, Garfield_Online_gdb, Countywide Parcels)) `parcels_wa_garfield`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Garfield County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_garfield_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Okanogan County WA parcels (Okanogan County GIS (ArcGIS Online, Okan_GIS1 Parcels)) `parcels_wa_okanogan`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Okanogan County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_okanogan_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Washington county parcel service registry `parcels_wa_registry`	research 2026-10-28	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Spokane County WA parcels (Spokane County GIS (gismo, Assessor/SCOUTSimple)) `parcels_wa_spokane`	live service; tax_year stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Spokane County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_spokane_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Stevens County WA parcels (Stevens County GIS (RealPropertyParcels_Public)) `parcels_wa_stevens`	live service; year stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Stevens County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_stevens_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Walla Walla County WA parcels (Walla Walla County GIS / Assessor (ArcGIS Online, Tax Parcels)) `parcels_wa_walla_walla`	live service; prop_val_yr stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Walla Walla County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_walla_walla_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Whitman County WA parcels (Whitman County Public Works GIS (ArcGIS Online, Parcel Data / TaxSifter Map)) `parcels_wa_whitman`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Whitman County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_whitman_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Yakima County WA parcels (Yakima County GIS (ArcGIS Online, YakimaGIS Parcels, 'Yakima County Taxlots')) `parcels_wa_yakima`	live service; last_edited_date stamp recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)
Yakima County WA parcels (Washington State Geospatial Open Data Portal (WaTech), Current Parcels (statewide county tax parcels)) `parcels_wa_yakima_statewide`	live service; no per-record date; query date recorded per result	2026-10-28	county public GIS service; no warranty; not a survey (verify with the county assessor)

Hydrography: USGS NHD

Dataset	Vintage	Retrieved	Licence
USGS NHD Best Resolution NHDArea, Idaho `nhd_id_area`	NHD Best Resolution, Idaho, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-10-28	Public domain (USGS)
USGS NHD Best Resolution NHDFlowline, Idaho `nhd_id_flowline`	NHD Best Resolution, Idaho, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-10-28	Public domain (USGS)
USGS NHD Best Resolution NHDWaterbody, Idaho `nhd_id_waterbody`	NHD Best Resolution, Idaho, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-10-28	Public domain (USGS)
USGS NHD Best Resolution NHDArea, Massachusetts `nhd_ma_area`	NHD Best Resolution, Massachusetts, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-13	Public domain (USGS)
USGS NHD Best Resolution NHDFlowline, Massachusetts `nhd_ma_flowline`	NHD Best Resolution, Massachusetts, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-13	Public domain (USGS)
USGS NHD Best Resolution NHDWaterbody, Massachusetts `nhd_ma_waterbody`	NHD Best Resolution, Massachusetts, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-13	Public domain (USGS)
USGS NHD Best Resolution NHDArea, Maine `nhd_me_area`	NHD Best Resolution, Maine, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-11	Public domain (USGS)
USGS NHD Best Resolution NHDFlowline, Maine `nhd_me_flowline`	NHD Best Resolution, Maine, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-11	Public domain (USGS)
USGS NHD Best Resolution NHDWaterbody, Maine `nhd_me_waterbody`	NHD Best Resolution, Maine, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-11	Public domain (USGS)
USGS NHD Best Resolution NHDArea, Vermont `nhd_vt_area`	NHD Best Resolution, Vermont, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-13	Public domain (USGS)
USGS NHD Best Resolution NHDFlowline, Vermont `nhd_vt_flowline`	NHD Best Resolution, Vermont, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-13	Public domain (USGS)
USGS NHD Best Resolution NHDWaterbody, Vermont `nhd_vt_waterbody`	NHD Best Resolution, Vermont, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-11-13	Public domain (USGS)
USGS NHD Best Resolution NHDArea, Washington `nhd_wa_area`	NHD Best Resolution, Washington, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-10-28	Public domain (USGS)
USGS NHD Best Resolution NHDFlowline, Washington `nhd_wa_flowline`	NHD Best Resolution, Washington, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-10-28	Public domain (USGS)
USGS NHD Best Resolution NHDWaterbody, Washington `nhd_wa_waterbody`	NHD Best Resolution, Washington, published 2023-12-27 (NHD retired 2023-10-01; successor 3DHP has no state cut)	2026-10-28	Public domain (USGS)

Watersheds: USGS WBD

https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/6

Dataset	Vintage	Retrieved	Licence
USGS Watershed Boundary Dataset 12-digit hydrologic units (subwatersheds), Idaho `wbd_id_hu12`	WBD HUC12 service, max loaddate 2024-09-11 (queried 2026-10-28)	2026-10-28	Public domain (USGS)
USGS Watershed Boundary Dataset 12-digit hydrologic units (subwatersheds), Massachusetts `wbd_ma_hu12`	WBD HUC12 service, max loaddate 2024-08-15 (queried 2026-11-13)	2026-11-13	Public domain (USGS)
USGS Watershed Boundary Dataset 12-digit hydrologic units (subwatersheds), Maine `wbd_me_hu12`	WBD HUC12 service, max loaddate 2024-10-24 (queried 2026-11-11)	2026-11-11	Public domain (USGS)
USGS Watershed Boundary Dataset 12-digit hydrologic units (subwatersheds), Vermont `wbd_vt_hu12`	WBD HUC12 service, max loaddate 2024-08-15 (queried 2026-11-13)	2026-11-13	Public domain (USGS)
USGS Watershed Boundary Dataset 12-digit hydrologic units (subwatersheds), Washington `wbd_wa_hu12`	WBD HUC12 service, max loaddate 2024-10-29 (queried 2026-10-28)	2026-10-28	Public domain (USGS)

Protected areas: USGS PAD-US

https://services.arcgis.com/v01gqwM5QqNysAAi/ArcGIS/rest/services/Protection_Mechanism_Category_PADUS/FeatureServer/0

Dataset	Vintage	Retrieved	Licence
PAD-US 4.1 protected areas (fee, designation, easement, proclamation), ID `padus_id`	PAD-US 4.1 (published 2025-03-31; layer edited 2025-06-04)	2026-10-28	US federal public domain (USGS data release; PAD-US Data Overview terms, no warranty)
PAD-US 4.1 protected areas (fee, designation, easement, proclamation), MA `padus_ma`	PAD-US 4.1 (published 2025-03-31; layer edited 2025-06-04)	2026-11-13	US federal public domain (USGS data release; PAD-US Data Overview terms, no warranty)
PAD-US 4.1 protected areas (fee, designation, easement, proclamation), ME `padus_me`	PAD-US 4.1 (published 2025-03-31; layer edited 2025-06-04)	2026-11-11	US federal public domain (USGS data release; PAD-US Data Overview terms, no warranty)
PAD-US 4.1 protected areas (fee, designation, easement, proclamation), VT `padus_vt`	PAD-US 4.1 (published 2025-03-31; layer edited 2025-06-04)	2026-11-13	US federal public domain (USGS data release; PAD-US Data Overview terms, no warranty)
PAD-US 4.1 protected areas (fee, designation, easement, proclamation), WA `padus_wa`	PAD-US 4.1 (published 2025-03-31; layer edited 2025-06-04)	2026-10-28	US federal public domain (USGS data release; PAD-US Data Overview terms, no warranty)

Counties and places: Census TIGER/Line

Dataset	Vintage	Retrieved	Licence
TIGER/Line 2026 counties, ID `tiger_counties_id`	TIGER2026	2026-10-28	US federal public domain
TIGER/Line 2026 counties, MA `tiger_counties_ma`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 counties, ME `tiger_counties_me`	TIGER2026	2026-11-11	US federal public domain
TIGER/Line 2026 counties, NH `tiger_counties_nh`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 counties, OR `tiger_counties_or`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 counties, VT `tiger_counties_vt`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 counties, WA `tiger_counties_wa`	TIGER2026	2026-10-28	US federal public domain
TIGER/Line 2026 county subdivisions, MA `tiger_cousub_ma`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 county subdivisions, ME `tiger_cousub_me`	TIGER2026	2026-11-11	US federal public domain
TIGER/Line 2026 county subdivisions, NH `tiger_cousub_nh`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 county subdivisions, OR `tiger_cousub_or`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 county subdivisions, VT `tiger_cousub_vt`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 places, ID `tiger_place_id`	TIGER2026	2026-11-12	US federal public domain
TIGER/Line 2026 places, MA `tiger_place_ma`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 places, ME `tiger_place_me`	TIGER2026	2026-11-12	US federal public domain
TIGER/Line 2026 places, NH `tiger_place_nh`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 places, OR `tiger_place_or`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 places, VT `tiger_place_vt`	TIGER2026	2026-11-13	US federal public domain
TIGER/Line 2026 places, WA `tiger_place_wa`	TIGER2026	2026-11-12	US federal public domain

Transmission lines: HIFLD

https://services2.arcgis.com/FiaPA4ga0iQKduv3/arcgis/rest/services/US_Electric_Power_Transmission_Lines/FeatureServer/0

Dataset	Vintage	Retrieved	Licence
HIFLD electric power transmission lines, ID + 25 mi `transmission_lines_id`	HIFLD Open final release, last data update 2024-09-30 (frozen; HIFLD Open closed 2025-08-26)	2026-10-28	US Government data (DHS HIFLD Open) redistributed by Esri under the Esri Master License Agreement; archive copy
HIFLD electric power transmission lines, MA + 25 mi `transmission_lines_ma`	HIFLD Open final release, last data update 2024-09-30 (frozen; HIFLD Open closed 2025-08-26)	2026-11-13	US Government data (DHS HIFLD Open) redistributed by Esri under the Esri Master License Agreement; archive copy
HIFLD electric power transmission lines, ME + 25 mi `transmission_lines_me`	HIFLD Open final release, last data update 2024-09-30 (frozen; HIFLD Open closed 2025-08-26)	2026-11-11	US Government data (DHS HIFLD Open) redistributed by Esri under the Esri Master License Agreement; archive copy
HIFLD electric power transmission lines, VT + 25 mi `transmission_lines_vt`	HIFLD Open final release, last data update 2024-09-30 (frozen; HIFLD Open closed 2025-08-26)	2026-11-13	US Government data (DHS HIFLD Open) redistributed by Esri under the Esri Master License Agreement; archive copy
HIFLD electric power transmission lines, WA + 25 mi `transmission_lines_wa`	HIFLD Open final release, last data update 2024-09-30 (frozen; HIFLD Open closed 2025-08-26)	2026-10-28	US Government data (DHS HIFLD Open) redistributed by Esri under the Esri Master License Agreement; archive copy

Obstructions: FAA Digital Obstacle File

https://aeronav.faa.gov/Obst_Data/DOF_260927.zip

Dataset	Vintage	Retrieved	Licence
FAA Digital Obstacle File obstacles, ID `faa_dof_id`	DOF cycle 2026-09-27 (DOF_260927.zip)	2026-10-28	US Government work, public domain (FAA Aeronautical Information Services)
FAA Digital Obstacle File obstacles, MA `faa_dof_ma`	DOF cycle 2026-09-27 (DOF_260927.zip)	2026-11-13	US Government work, public domain (FAA Aeronautical Information Services)
FAA Digital Obstacle File obstacles, ME `faa_dof_me`	DOF cycle 2026-09-27 (DOF_260927.zip)	2026-11-11	US Government work, public domain (FAA Aeronautical Information Services)
FAA Digital Obstacle File obstacles, VT `faa_dof_vt`	DOF cycle 2026-09-27 (DOF_260927.zip)	2026-11-13	US Government work, public domain (FAA Aeronautical Information Services)
FAA Digital Obstacle File obstacles, WA `faa_dof_wa`	DOF cycle 2026-09-27 (DOF_260927.zip)	2026-10-28	US Government work, public domain (FAA Aeronautical Information Services)