Philadelphia. 1864. Folding pocket map, 26 x 36 inches, with some period color. Bound into original 16mo. pebbled brown cloth, stamped in blind and gilt. Minor repairs, else very nice. Item #WRCAM29158
The watershed of the Allegheny River in the "Oil District," Venago County, is marked in red. A reduced version of Melish's map of Pennsylvania, reissued by Barnes in 1849. This reduced version was first published in 1856, apparently without the highlighting in red of the Allegheny watershed. Rumsey lists editions of 1857 (3350) and 1865 (4061).