"Map of the Sources of Snake River, with its Tributaries together with Portions of the Headwaters of the Madison and Yellow Stone…", Hayden, Ferdinand Vandeveer
Subject: Wyoming, Yellowstone
Period: 1873 (circa)
Publication: Sixth Annual Report of the United States Geological Survey
Color: Black & White
10 x 10.5 inches
25.4 x 26.7 cm
Shows northern Wyoming and the Yellowstone area drawn during Hayden's Geological Survey of 1871. This area later became Yellowstone National Park in 1872 and Hayden's surveying efforts were a significant factor in Congress' decision to create the park. The map shows Yellow Stone Lake, Jackson's Lake, the Snake River and relief through hachure.
References: Blevins #238.
Clean and crisp, issued folding. There are some chips in the right blank margin, away from map image.