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geological cross sections: explore 1 source-linked works, with original documents and citations.
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Shows mineral deposits from Matthias' Point to Briery Branch Gap, Virginia. Pen-and-ink, pencil (some col.), and crayon on 2 sheets pasted together, mounted on cloth. "Scale 50 horizontal to 2 vertical." In pencil in upper right corner: No. 2. In pencil on verso: 330 crossed out. LC Civil War maps (2nd ed.), H268 Available also through the Library of Congress web site as raster image.