1901. Geological Survey (U.S.). Relief shown by contours.; "Reconnaissance map."; "Survey in 1888."; "Engraved Oct 1891 by U.S.G.S."; Shows roads, and railroads.; Text on verso. 4... The Survey (Washington, D.C).
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1909. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Control by Coast and Geodetic Survey."; "Surveyed in 1906-1907. Edition of May 1909, reprinted 1921. A... The Survey (Washington).
1924. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1903 and 1923."; "State of Colorado, William E. Sweet, Governor ..." on sheet 59 x 84 cent... The Survey (Washington, D.C).
1928. Geological Survey (U.S.). Relief shown by contours and spot heights.; Includes inset showing "Railroad lines leading to Mesa Verde National Park." 70 x 107 centimeters Scale... The Survey (Washington, D.C).