Geological map of Virginia & West Virginia showing their chie...
Geological map of Virginia and West Virginia showing their chief geological sub-divisions | Middle Atlantic States & North Carolina : physical and political / by A. Guyot
Relief shown by hachures. LC Civil War maps (2nd ed.), H218 Available also through the Library of Congress web site as raster image. LC copy: Extensive ink, pencil, and annotations with watercolor showing the different types of geological formations. LC copy: Title in ms. in lower left. In pencil on verso: 183.
Rogers, William Barton - Guyot, A. (Arnold)