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Map all coordinates using OpenStreetMap. Download coordinates as: KML; ... Pages in category "Volcanoes of Oregon" The following 112 pages are in this category, out ...
This is a list of Cascade volcanoes, i.e. volcanoes formed as a result of subduction along the Cascadia subduction zone in the Pacific Northwest of North America. The volcanoes are listed from north to south, by province or state: British Columbia , Washington , Oregon , and California .
The Cascade Volcanoes (also known as the Cascade Volcanic Arc or the Cascade Arc) are a number of volcanoes in a volcanic arc in western North America, extending from southwestern British Columbia through Washington and Oregon to Northern California, a distance of well over 700 miles (1,100 km).
It is a shield volcano that overlays a more ancient shield volcano named Little Brother. [43] North Sister is 5 mi (8 km) wide, [ 43 ] and its summit elevation is 10,090 ft (3,075 m). [ 4 ] [ 5 ] Consisting primarily of basaltic andesite , it has a more mafic composition than the other two volcanoes. [ 44 ]
Most of the volcanoes in the Oregon Cascades are either scoria cones, small shield volcanoes, or lava fields, though the segment contains a number of basaltic andesite stratovolcanoes such as Mount McLoughlin. [7] Black Butte is one such stratovolcano [4] (also known as a composite volcano), [9] with a mafic (rich in magnesium and iron ...
Newberry Volcano is a large, active, shield-shaped stratovolcano located about 20 miles (32 km) south of Bend, Oregon, United States, 35 miles (56 km) east of the major crest of the Cascade Range, within the Newberry National Volcanic Monument.
Jefferson's location in Oregon relative to other major volcanoes. The second tallest mountain in the U.S. state of Oregon after Mount Hood, Mount Jefferson lies within Jefferson, Linn, and Marion counties, [4] in the central part of the state. [5] Reaching an elevation of 10,497 feet (3,199 m), [6] the volcano has a proximal relief of 4,890 ...
In Eastern Oregon, several of the most notable eastern volcanoes are within the Basin and Range border. However, several extinct volcanoes in northeast Oregon and the border between the two regions are also there, including the Miocene Strawberry Mountain stratovolcano and the also Miocene Tower Mountain caldera. Some of the volcanoes within ...