This map is reproduced from the Atlas of Clarion County, Pennsylvania (PA), published in 1877 by J. A. Caldwell. There are small engravings of the Steel Bridgee at St. Louis, a Birds-Eye view of Pittsburgh, a Scene on the Ohio River, the Iron Bridge at Steubenville, Cork Run Tunnel, National Soldiers Home at Dayton, Ohio, the Grand Union Depot, Columbus, and the Double Curve near Gould Station.