1924. Geological Survey (U.S.). Relief shown by spot heights. 22 x 25 Centimeters Scale approximately 1:160,000 General Map Collection. U.S. Geological Survey (Washington, D.C.?).
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1923. Geological Survey (U.S.). Includes changes from previous repr.: edition of May 1915, repr. 1920, with additions.; Relief shown by contours and spot heights.; Title in upper ... The Survey (Washington, D.C).
1915. Geological Survey (U.S.). Relief shown by contours and spot heights.; "Roads and trails added 1928 by National Park Service."; Includes "Conventional signs and location map.... The Survey (Washington, D.C).