USGS Topographical Map
This topographical map by the U.S. Geological Survey depicts the region of Maryland along the Potomac River where the stones for the White House were quarried. The prevailing quarry was at Seneca, located on the map just north of the word "River" at the 20' by 5' grid mark.
- Artist
- U.S. Geological Survey
- Date of Work
- October 1908
- Type
- Credit
- U.S. Geological Survey