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Roaring Mountain () is in 
Yellowstone National Park
Yellowstone National Park is an American national park located in the western United States, largely in the northwest corner of Wyoming and extending into Montana and Idaho. It was established by the 42nd U.S. Congress with the Yellowst ...
in the U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of Wyoming
Wyoming () is a state in the Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the s ...
. Roaring Mountain was named for the numerous fumarole
A fumarole (or fumerole) is a vent in the surface of the Earth or other rocky planet from which hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcani ...
s on the western slope of the peak which during the early 1900s were loud enough to be heard for several miles. Roaring Mountain is north of Norris Geyser Basin and south of Obsidian Cliff and is easily seen from park roads.
References
{{Mountains of Wyoming Geothermal features of Yellowstone National Park Mountains of Yellowstone National Park Mountains of Wyoming Geothermal features of Park County, Wyoming Mountains of Park County, Wyoming