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Geologic map of the lake floor Crater Lake from space. Mount Mazama, part of the Cascade Range volcanic arc, was built up mostly of andesite, dacite, and rhyodacite over a period of at least 400,000 years. The caldera was created in a massive volcanic eruption between 6,000 and 8,000 years ago that led to the subsidence of Mount Mazama.
"Geologic map of Mount Mazama and Crater Lake Caldera, Oregon" (online version of paper map with associated booklet and database). United States Geological Survey . Retrieved November 13, 2009 .
Mount Scott is a small stratovolcano and a so-called parasitic cone on the southeast flank of Crater Lake in southern Oregon. [ 4 ] [ 5 ] It is approximately 420,000 years old. [ 3 ] Its summit is the highest point within Crater Lake National Park , and the tenth highest peak in the Oregon Cascades . [ 6 ]
Wizard Island; Highest point; Elevation: 6,933 ft (2,113 m) [1] Prominence: 755 ft (230 m)(varies with water level) [1] Coordinates: 2]: Geography; Location: Klamath County, Oregon, U.S.: Parent range: Cascades: Topo map: USGS Crater Lake West: Geology; Mountain type: Cinder cone: Volcanic arc: Cascade Volcanic Arc: Last eruption: About 4600 BC [3]: Climbing; Easiest route: Trail [4] with boat ...
Crater Lake is called Giiwas in the Klamath language. [7] Steel had helped map Crater Lake in 1886 with Clarence Dutton of the United States Geological Survey. The conservation movement in the United States was gaining traction, so Steel's efforts to preserve the Mazama area were achieved on two scales, first with the creation of the local ...
Crater Lake on Mount Mazama (Crater Lake National Park, Oregon ... Keyworth, Nottinghamshire. There is an associated 1:25000 solid geology map. Lipman, P; 1999. ...
Hillman Peak is an 8,151 feet (2,484 m) summit on the west rim of Crater Lake in Crater Lake National Park, Oregon. [3] It is the highest peak on the caldera rim and ranks as the second-highest peak in the park. [4] It is situated 1.5 mile northwest of Wizard Island.
The caldera rim reaches a maximum elevation of 6,716 feet (2,047 m). In 1975 the surface of the crater lake was at an elevation of about 4,220 feet (1,286 m), and the estimated elevation of the caldera floor is about 3,400 ft (1,040 m). The mountain is located in Kodiak Island Borough, very close to its border with Lake and Peninsula Borough ...