Amphitheater Mountain (Wyoming)

Amphitheater Mountain
Amphitheater Mountain
	Southwest aspect
Highest point
Elevation	11,042 ft (3,366 m)
Prominence	1,422 ft (433 m)
Parent peak	Pilot Peak (11,522 ft)
Isolation	5.60 mi (9.01 km)
Coordinates	44°58′25″N 109°59′55″W / 44.97361°N 109.99861°W
Geography
	Amphitheater Mountain Location in Wyoming Amphitheater Mountain Amphitheater Mountain (the United States)
Location	Yellowstone National Park; Park County, Wyoming, U.S.
Parent range	Absaroka Range; Rocky Mountains
Topo map	USGS Pilot Peak
Geology
Rock type	volcanic

Amphitheater Mountain is a prominent 11,042-foot-elevation (3,366-meter) mountain summit located in Park County, Wyoming, United States.^[2]

Description

The peak is situated southwest of the town of Cooke City, Montana, at the northeast corner of Yellowstone National Park, two miles south of the park's Northeast Entrance Station. It is part of the Absaroka Range, and a portion of the mountain is within the North Absaroka Wilderness. Topographic relief is significant as the north aspect rises over 3,600 feet (1,100 meters) above Silver Gate in two miles. Volcanoes of the early Eocene supplied the material that formed the mountain 50–55 million years ago, and here created some of the most rugged terrain in Yellowstone Park.^[3] The mountain's name has been officially adopted by the United States Board on Geographic Names.^[2]

Climate

According to the Köppen climate classification system, Amphitheater Mountain is located in a subarctic climate zone with long, cold, snowy winters, and cool to warm summers.^[4] Temperatures can drop below −10 °F with wind chill factors below −30 °F. Precipitation runoff from the mountain drains into tributaries of the Lamar River.