Profile of the surface of the ground at Cobble H]ill Fort on Broklyn heights & Mr. Bergen's hill near Gowannes Creek ... 12th 1814. Relief shown pictorially. "B: Cobble Hill Fort, C: Mr Bergens hill." "Office of Chief of Engineers, War Department. 58510 538" on verso. Copy imperfect: Lower right corner and portion of title lacking. Minimal level cataloging record.