Data and image sources that may be of use for fact checking and comparing images. Usual warnings against using copyrighted data/imagery apply.
Functional classification maps
Highway data
- National Highway System (US Federal Hwy Admin)
- Interstate Exits (allstays.com)
Maps and imagery
- ArcGIS Explorer (ESRI)
- GeoCommunicator (US Dept of Interior)
- Guidepost (GIS provider with links to local sites in 11 states)
- TIGERWeb (US Census Bureau)
- USGS National Map Viewer
Road construction
- National Traffic and Road Closure Information (US Federal Hwy Admin)
Cities and Census Designated Places
- 2010 Census Block Maps (US Census Bureau)