1926. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Surveyed in 1924-5."; Vertical scale of profiles 1 in. = 40 ft.; Includes "Key map of plan sheets" on ... The Survey (Washington).
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1908. Geological Survey (U.S.). Relief shown by contours and spot heights. 51 x 36 Centimeters Scale 1:500,000 ; General Map Collection. The Survey (Washington).
1929. Geological Survey (U.S.). Relief shown by contours and spot heights.; Shows status of roads.; On verso: "The topographic maps of the United States" (text and ill.). 53 x 60 ... The Survey (Washington).
1927. Geological Survey (U.S.). Relief shown by contours, and spot heights. 66 x 72 Centimeters Scale 1:125,000 ; General Map Collection. The Survey (Washington).
1920. Geological Survey (U.S.). Relief shown by contours and spot heights. 67 x 71 centimeters Scale 1:125,000 General Map Collection. The Survey (Washington).