Latitude: 39°2'N
Longitude: 77°5'W
Ref.: Rocks & Min.: 11:122. A granite quarry.
This location is now in Rock Creek Park, in the Ken-Gar recreation area. The quarry is gone, but the one of the rock faces of the quarry exists all the way at the back of the field nearest the railroad. The quarry area itself is a marshy area. The site is easy to get to.
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