F.V. Hayden, Economic Map of Portions of Wyoming, Idaho and Utah
F.V. Hayden, Part of Central Wyoming
F.V. Hayden, Parts of Western Wyoming, Southeastern Idaho and Northeastern Utah
George L. Holt, Holt's New Map of Wyoming. Compiled by permission from official records in U.S. Land Office.
Kurtz & Allison, Gibbon Falls, Yellow-Stone Nat'l Park
Rudolf Cronau (1855-1939) Der Castle-Geysir im Yellowstone-Park. Wyoming. 17. [Castle Geyser Yellowstone Park, Wyoming]
Rudolf Cronau (1855-1939) Die, Mammoth Hot Springs” im Yellowstone-Park. Wyoming. 3. [Hot Springs Yellowstone Park, Wyoming]
Samuel Augustus Mitchell Jr, County and Township Map Montana, Idaho, and Wyoming
Samuel Scott, Map of Black Hills of South Dakota and Wyoming
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