Geological map of Virginia & West Virginia showing their chief geological sub-divisions
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 ...
Rogers, William Barton - Guyot, A. (Arnold)