Geological Map of the United States & Canada 1856 large fine Blackwood mapBrian DiMambro- Antiquarian Books, Maps & Prints
Geological Map of the United States and British North America.
(North America, Geology, Rock Types, Railroads, United States, Canada, Great Lakes, Mississippi River, Rio Grande, Baja Peninsula, Gulf of St. Lawrence).
Issued 1856, Edinburgh by William Blackwood and Sons. Engraved by W & A.K. Johnston.
Detailed and lovely large mid 19th century color lithographed folio map with piano key border.
Across the bottom is a comparison of geological sections from the east coast to Niagara Falls.
Well preserved, nice looking example with pleasing age patina.
Original center fold as issued.
Sheet Measures c. 21 3/4" H x 27" W.
Engraved Area Measures c. 20" H x 24" W.
Tooley's Dictionary of Mapmakers, vol. 1.