1875. Geological and Geographical Survey of the Territories (U.S.). Scale [1:253,440]. 4 miles = 1 in. From Powell's Exploration of the Colorado River ... l875. Relief shown by contours. Department of the Interior, ... The Survey.
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1915. Geological Survey (U.S.). Scale 1:62,500 Relief shown by contours and spot heights. Title in upper center margin: Topography. Title in upper right margin: Washington, Mt. Ra... The Survey.
1915. Geological Survey (U.S.). Scale 1:62,500 Relief shown by contours and spot heights. Contour interval 50 ft. "Surveyed in 1893-94." Text and ill. on verso. Department of the ... The Survey.