Historical Wyoming State Maps

Yellowstone National Park Wyoming - Brown 1895 - 23 x 31.31
Wyoming - Holt 1883 - 23 x 26.00
Wyoming - Mitchell 1880 - 23 x 28.40
United States Northwest - Petermann 1872 - 23 x 27.37
Yellowstone National Park Wyoming - Poole 1880 - 26.19 x 23
Yellowstone Park Burlington Route -Poole 1898 - 23 x 29