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Roaring Mountain

Detailed Description

A view of Roaring Mountain in Yellowstone National Park, Wyoming. "Roaring Mountain is a large, acidic thermal area (solfatara) that contains many steam vents (fumaroles). In the late 1800s and early 1900s, the number, size, and power of the fumaroles was much greater than today." (NPS)

Sources/Usage

Public Domain.