Geological section crossing Blue Ridge at White's Gap, Rockbridge Co. Va. & extending 10 miles beyond Hunterville [sic], Pocahontas Co., W. Va. /

Pen-and-ink, pencil, and watercolor, mounted on cloth. LC Civil War maps (2nd ed.), H222 Available also through the Library of Congress web site as raster image. In upper right corner: No. 36. ...