Survey monument sketch from 1990's DSC monument database.
U. S. National Park Service
Sketch is for survey monument at NERI.
This digital asset is in the public domain. When using this asset for any purpose, including online, credit: 'U.S. National Park Service, Land Resources Division'.
Organization: Land Resources Division Position: Program Coordinator Address: 1849 C Street, NW, Suite 2340, Main Interior Building, Washington, DC 20240