This map depicts the Midway Geyser Basin in Yellowstone National Park, which contains two of the largest hot springs in the world. The "Grand Prismatic Spring" is shown at the center of a web of connected creeks emptying into the Firehouse River. To the south, near the bend in the river, is an unnamed "Geyser" (Excelsior Geyser), which at the time could erupt up to 300 feet high and has since become a hot spring. Rudyard Kipling, who visited Yellowstone in 1889, immortalized this basin by referring to it as "Hell's Half Acre." Plotted by Henry Gannett under the direction of F.V. Hayden, Geologist in Charge.

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Condition: A

Issued folding with pleasant light toning.