Rogers, Henry D. (Henry Darwin), 1808-1866Relief shown by hachures.; "To accompany the final report on the Geological Survey of the state 1858."; "Entered according to act of Congress, in the year 1858, by Henry D. Rogers ... Eastern District of Pennsylvania."; Washington D.C. meridian.88 x 176 centimeters, sheets 74 x 95 centimetersJPEGUMN_ALMA:9974088486801701engPennsylvania Geological Survey (Harrisburg?)PublicGeological map of the state of Pennsylvania : constructed from original surveys made between 1836 and 1857Maps1858University of Minnesota