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Mount Mazama (Klamath: Tum-sum-ne [5]) is a complex volcano in the western U.S. state of Oregon, in a segment of the Cascade Volcanic Arc and Cascade Range.The volcano is in Klamath County, in the southern Cascades, 60 miles (97 km) north of the Oregon–California border.
Since 2002, one of Oregon's regular-issue license-plate design has featured Crater Lake [7] and a one-time plate surcharge is used to support the operation of Crater Lake National Park. [8] The commemorative Oregon State Quarter, which was released by the United States Mint in 2005, features an image of Crater Lake on its reverse. [9]
Volcanic activity in this area is fed by subduction off the coast of Oregon as the Juan de Fuca Plate slips below the North American Plate (see plate tectonics). Heat and compression generated by this movement has created a mountain chain topped by a series of volcanoes, which together are called the Cascade Range. The large volcanoes in the ...
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 ]
The rift is pocketed by multiple fissures, 100–200 m (328–656 ft) in length, as far as 7 km (4 mi) from Axial Volcano's center, and reaching up to 400 m (1,312 ft) long and 20 m (66 ft) deep. The area contains high amounts of volcanic glass ; a major eruption is still visible in the form of an elongated glassy lava flow extending off the ...
The Sand Mountain Volcanic Field (also known as the Sand Mountain Field) is a volcanic field in the upper McKenzie River watershed, located in the United States in Oregon. Part of the Cascade Volcanic Arc , it lies southwest of Mount Jefferson and northwest of Belknap Crater and Mount Washington .
Chadwick is a research professor with Oregon State University's Hatfield Marine Science Center. ... and about 300 feet deep. Unlike other volcanoes around the world that can go centuries between ...
The Boring Lava Field (also known as the Boring Volcanic Field) [3] is a Plio-Pleistocene volcanic field of cinder cones, small shield volcanoes, and lava flows in the northern Willamette Valley of the U.S. state of Oregon and adjacent southwest Washington.