Shows coal and oil regions from Lake Ontario through much of West Virginia; most of New York State is shown, though without geological detail. Also shows locations of steel works, foundries, etc.
Publisher:
Jacob Haehnlen [lithographer],
Subject (Geographic):
Pennsylvania--Maps
Subject (Topic):
Canals--Pennsylvania--Maps, Coal--Pennsylvania--Maps, Iron industry and trade--Pennsylvania--Maps, and Railroads--Pennsylvania--Maps