Gannett, Henry, 1846-1914. U.S. Geological Survey, Department of the Interior ; compiled by Henry Gannett. Relief shown by hypsometric tints and contours. The Survey.
Search Results
Gannett, Henry, 1846-1914. by Henry Gannett. From its Annual report, 19th, part V, pl. II. Relief shown by contours. The Survey.