Front page of USGS topographic maps symbol sheet
![Front page of USGS topographic maps symbol sheet](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/toposymbols_0.jpg?itok=ULN-aQrh)
Detailed Description
Front cover page on the USGS topographic maps symbol sheet covering the years 1947-2009
Sources/Usage
Public Domain.
Front cover page on the USGS topographic maps symbol sheet covering the years 1947-2009
Public Domain.