General Interest
- DCNR Open Data - https://data-dcnr.opendata.arcgis.com/
- NHGIS - https://www.nhgis.org/
- Pennsylvania Spatial Data Access - https://www.pasda.psu.edu/
- PennDOT Open Data - https://data-pennshare.opendata.arcgis.com/
- Texas Natural Resource information System (TNRIS), Data & Maps - https://data.tnris.org/
- U.S. Census Tiger Data - https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-geodatabase-file.html
- USDA Data Portal - https://datagateway.nrcs.usda.gov/GDGOrder.aspx
- USGS Store - https://store.usgs.gov/
- USGS National Map Data Download:
- https://viewer.nationalmap.gov/viewer/
- World Wide Data - https://www.gadm.org/country
