Informal Trails in Potomac Gorge
![USGS research documented these informal trails created by off-trail visitor traffic](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/POGO%20Informal%20Trails%2C%20Falls%20view.jpg?itok=loXfW0NA)
Detailed Description
USGS research documented these informal trails created by off-trail visitor traffic in areas with large numbers of rare and endangered plants in Potomac Gorge near Washington, DC.
Sources/Usage
Public Domain.