NDT State Trail Contributors to USGS Nationwide Trails Database
By National Digital Trails
February 2021 (approx.)
Detailed Description
The image above shows nationwide distribution of USGS trails data received from state agencies. The trails that are in the USGS dataset are displayed in yellow, and the trails that are still in review for integration are displayed in cyan color. States that have contributed trails data are displayed in black and states with no trails data in the USGS dataset are displayed in gray.
Sources/Usage
Public Domain.