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HYDROTHERMAL CLUES

Members of the Hayden Expedition of 1871 collected water from Yellowstone’s hot water features for further study and the United States Geological Survey performed the first chemical analysis of Yellowstone’s thermal waters in 1888.

In the mid-1920s, Superintendent Horace M. Albright supported a project led by Drs. Eugene Thomas Allen and Arthur Lewis Day, geologists with the Carnegie Institute’s Geophysical Laboratory in Washington, D.C. to research Yellowstone’s hydrothermal resources. The end result was Hot Springs of the Yellowstone National Park. Published by the Carnegie Institution in 1935, this book became the definitive work on Yellowstone’s thermal environments for many decades.

Water from the same springs has been collected and analyzed many times with increasingly sophisticated technology, but the baseline data from this early study remains both valid and valuable.

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