1906. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1900."; Includes legend in right margin.; Text and ill. on verso. 49 x 76 centimeters Scal... U.S. Geological Survey (Washington, D.C).
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1906. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1900."; Includes legend in right margin.; Text and ill. on verso. 49 x 76 centimeters Scal... U.S. Geological Survey (Washington, D.C).
1906. Geological Survey (U.S.). Shows mines. Relief shown by contours and spot heights.; "E.M. Douglas, Geographer in charge. Topography by R.H. Sargent. Triangulation by T.M. Ban... U.S. Geological Survey (Washington, D.C).