Topographical map in thirty-foot contour curves of the Buffalo Coal Company's tract in the vicinity of Clermont, Sergeant Township, McKean County / By Grahame Macfarlane, M.E. Supt. ; revised by Chas. A. Ashburner, asst. geologist.
From Cities and towns, A - Z (In 6 layers) Depicts: 1879 Last modified almost 4 years ago. Unrectified.
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