1876. Geographical Surveys West of the 100th Meridian (U.S.). Relief shown by hachures and spot heights.; "Atlas sheet no. 83."; "Issued Mar. 18th 1876."; "Expeditions of 1871 & 1873 under the command of 1st. ... U.S. Geographical Surveys West of the 100th Meridian (Washington, D.C).
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1876. United States. General Land Office. Relief shown by hachures.; "S.S. Burdett, Commissioner." 59 x 73 centimeters Scale 1:1,140,480; 18 miles to 1 inch General Map Collection. General Land Office (Washington, D.C).