List of Cascade volcanoes

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.

British Columbia

Name Type Elevation
(m)		 Elevation
(ft)		 Last eruption (VEI) Location
Silverthrone Caldera[note 1] Caldera 2,865 9,400 Unknown 51°26′N 126°18′W / 51.43°N 126.30°W
Franklin Glacier Volcano[note 2] Caldera 2,252 7,388 Pliocene 51°20′N 125°02′W / 51.33°N 125.04°W
Bridge River Cones Volcanic field 2,500 8,500 Unknown 50°48′N 123°24′W / 50.80°N 123.40°W
Mount Meager Complex volcano 2,645 8,678 2,350 BP (5) 50°38′N 123°30′W / 50.63°N 123.50°W
Ring Mountain Tuya 2,192 7,192 Unknown 50°08′N 123°10′W / 50.13°N 123.17°W
Mount Cayley Stratovolcano 2,385 7,825 20,000 BP 50°07′N 123°17′W / 50.12°N 123.28°W
Brandywine Mountain Volcanic plug 2,213 7,260 Pleistocene 50°07′N 123°13′W / 50.11°N 123.22°W
Mount Fee Volcanic plug 2,162 7,093 Pleistocene 50°05′N 123°14′W / 50.08°N 123.24°W
Mount Brew Subglacial volcano 1,757 5,764 Pleistocene 50°02′N 123°11′W / 50.04°N 123.19°W
The Black Tusk Stratovolcano 2,319 7,608 Pleistocene 49°58′N 123°02′W / 49.97°N 123.04°W
Cinder Cone Cinder cone 1,910 6,266 Holocene 49°58′N 123°01′W / 49.97°N 123.01°W
Clinker Peak Stratovolcano 1,992 6,535 9,000 BP 49°56′N 123°02′W / 49.93°N 123.04°W
Mount Price Stratovolcano 2,052 6,732 9,000 BP 49°55′N 123°02′W / 49.92°N 123.03°W
Garibaldi Lake Volcanic field 2,316 7,598 Unknown 49°55′N 123°02′W / 49.92°N 123.03°W
The Table Tuya 2,021 6,631 Pleistocene 49°54′N 123°01′W / 49.90°N 123.01°W
Mount Garibaldi Stratovolcano 2,678 8,786 10,700-9,300 (3?) 49°50′N 123°00′W / 49.84°N 123.00°W
Opal Cone Cinder cone 1,736 5,696 9,300 BP 49°50′N 123°58′W / 49.83°N 123.97°W
The Castle Subglacial volcano - - Pleistocene 49°41′N 123°01′W / 49.69°N 123.02°W
Coquihalla Mountain Stratovolcano 2,157 7,077 Miocene -
Watts Point Subglacial volcano 240 800 90,000 BP 49°23′N 123°08′W / 49.39°N 123.13°W

Washington

Name Type Elevation
(m)		 Elevation
(ft)		 Last eruption (VEI) Location
Mount Baker Stratovolcano 3,286 10,781 1880 (2) 48°46′37″N 121°48′47″W / 48.777°N 121.813°W
Glacier Peak Stratovolcano 3,213 10,541 1700 ± 100 years (2) 48°06′43″N 121°06′47″W / 48.112°N 121.113°W
Mount Rainier Stratovolcano 4,392 14,411 1894 (1?) 46°51′11″N 121°45′36″W / 46.853°N 121.760°W
Goat Rocks Stratovolcano 2,494 8,184 730,000 BP 46°17′N 121°14′W / 46.29°N 121.24°W
Mount Adams Stratovolcano 3,742 12,277 950 AD? (2) 46°12′22″N 121°29′24″W / 46.206°N 121.490°W
Mount St. Helens Stratovolcano 2,549 8,363 2008 (2) 46°12′N 122°11′W / 46.20°N 122.18°W
Indian Heaven Shield volcanoes 1,806 5,925 6250 BC ± 100 years 45°56′N 121°49′W / 45.93°N 121.82°W
Silver Star Mountain Shield volcanoes? 1,330 4,364 20 million years ago 45°44′51.8″N 122°14′20.5″W / 45.747722°N 122.239028°W
West Crater Volcanic field 1,329 4,360 5750 BC? (2?) 45°53′N 122°05′W / 45.88°N 122.08°W
Trout Creek Hill Shield volcano 893 2,930 340,000 BP 45°50′N 122°00′W / 45.83°N 122°W

Oregon

Name Type Elevation
(m)		 Elevation
(ft)		 Last eruption (VEI) Location
Boring Lava Field Volcanic field 1,236 4,055 Pleistocene 45°40′N 122°41′W / 45.66°N 122.68°W
Rocky Butte Cinder cone 174 571 Pleistocene 45°32′49″N 122°33′54″W / 45.547°N 122.565°W
Powell Butte Cinder cone 191 627 Pleistocene 45°29′13″N 122°30′14″W / 45.487°N 122.504°W
Mount Sylvania Cinder cone 292 958 Pleistocene 45°26′17″N 122°43′16″W / 45.438°N 122.721°W
Mount Hood Stratovolcano 3,426 11,240 1866 (2) 45°22′26″N 121°41′42″W / 45.374°N 121.695°W
Olallie Butte Shield volcano 2,199 7,215 - 44°49′12″N 121°45′50″W / 44.820°N 121.764°W
Mount Jefferson Stratovolcano 3,199 10,495 950 AD? 44°40′26″N 121°47′56″W / 44.674°N 121.799°W
Three Fingered Jack Shield volcano 2,390 7,841 Pleistocene 44°28′41″N 121°50′42″W / 44.478°N 121.845°W
Hogg Rock Tuya 1,548 5,080 Pleistocene 44°25′19″N 121°52′37″W / 44.422°N 121.877°W
Blue Lake Crater Maar 1,230+ 4,035 680 AD ± 200 years 44°24′40″N 121°46′26″W / 44.411°N 121.774°W
Hoodoo Butte Cinder cone 1,738 5,702 Holocene 44°24′07″N 121°53′02″W / 44.402°N 121.884°W
Sand Mountain Field Cinder cones 1,664 5,459 70 AD ± 150 years 44°23′N 121°56′W / 44.38°N 121.93°W
Hayrick Butte Tuya 1,683 5,523 Pleistocene 44°23′56″N 121°52′16″W / 44.399°N 121.871°W
Black Butte Cinder cone 1,937 6,355 - 44°23′56″N 121°38′02″W / 44.399°N 121.634°W
Mount Washington Shield volcano 2,376 7,795 1,330 BP 44°19′55″N 121°50′17″W / 44.332°N 121.838°W
Belknap Crater Shield volcanoes 2,095 6,873 480 AD? (2?) 44°17′06″N 121°50′35″W / 44.285°N 121.843°W
Black Crater Shield volcano 2,210 7,251 - 44°15′58″N 121°44′53″W / 44.266°N 121.748°W
Three Sisters Complex volcano 3,157 10,358 1,600 BP 44°06′N 121°46′W / 44.10°N 121.77°W
Broken Top Stratovolcano 2,797 9,055 100,000 BP 44°04′59″N 121°41′56″W / 44.083°N 121.699°W
Pilot Butte Cinder cone 1,261 4,138 Pleistocene 44°03′40″N 121°16′59″W / 44.061°N 121.283°W
Tumalo Mountain Shield volcano 2,370 7,775 - 44°00′18″N 121°38′31″W / 44.005°N 121.642°W
Mount Bachelor Stratovolcano 2,764 9,068 8,000-10,000 BP 43°58′44″N 121°41′17″W / 43.979°N 121.688°W
Lava Butte Cinder cone 1,529 5,016 7,000 BP 43°55′05″N 121°21′22″W / 43.918°N 121.356°W
Newberry Volcano Shield volcano 2,435 7,989 690 AD (4) 43°43′19″N 121°13′44″W / 43.722°N 121.229°W
Maiden Peak Shield volcano 2,383 7,818 - 43°37′34″N 121°55′30″W / 43.626°N 121.925°W
Davis Lake Volcanic field 2,163 7,096 2,790 BC? 43°34′N 121°49′W / 43.57°N 121.82°W
Diamond Peak Shield volcano 2,665 8,744 Less than 100,000 BP 43°31′12″N 122°08′56″W / 43.520°N 122.149°W
Devil's Garden Volcanic field 1,698+ 5,571 Unknown 43°30′43″N 120°51′40″W / 43.512°N 120.861°W
Squaw Ridge Volcanic field 1,711 5,613 Unknown 43°28′19″N 120°45′14″W / 43.472°N 120.754°W
Four Craters Volcanic field 1,501 4,924 Unknown 43°21′40″N 120°40′08″W / 43.361°N 120.669°W
Cinnamon Butte Cinder cones 1,956 6,417 Unknown 43°14′28″N 122°06′29″W / 43.241°N 122.108°W
Howlock Mountain Shield volcano 2,545 8,351 Pleistocene 43°11′31″N 122°02′20″W / 43.192°N 122.039°W
Mount Bailey Shield volcano 2,551 8,368 Less than 100,000 BP 43°09′18″N 122°13′16″W / 43.155°N 122.221°W
Mount Thielsen Stratovolcano 2,799 9,184 - 43°09′11″N 122°04′01″W / 43.153°N 122.067°W
Yamsay Mountain Shield volcano 2,498 8,196 - 42°55′52″N 121°21′50″W / 42.931°N 121.364°W
Mount Mazama Caldera 2,487 8,159 2290 BC ± 300 years 42°56′N 122°07′W / 42.93°N 122.12°W
Mount Scott Stratovolcano 2,722 8,929 Pleistocene 42°55′23″N 122°01′05″W / 42.923°N 122.018°W
Union Peak Shield volcano 2,350 7,709 - 42°49′52″N 122°13′26″W / 42.831°N 122.224°W
Pelican Butte Shield volcano 2,449 8,036 300,000 BP 42°30′47″N 122°08′46″W / 42.513°N 122.146°W
Mount McLoughlin Stratovolcano 2,894 9,495 20,000 BP 42°26′42″N 122°18′54″W / 42.445°N 122.315°W
Aspen Butte Shield volcanoes 2,502 8,208 - 42°18′54″N 122°05′17″W / 42.315°N 122.088°W

California

Name Type Elevation
(m)		 Elevation
(ft)		 Last eruption (VEI) Location
Medicine Lake Volcano Shield volcano 2,412 7,913 1080 ± 25 years (3?) 41°36′40″N 121°33′14″W / 41.611°N 121.554°W
Mount Shasta Stratovolcano 4,317 14,163 1786 (3) 41°24′32″N 122°11′35″W / 41.409°N 122.193°W
Shastina Stratovolcano 3,758 12,330 - 41°24′N 122°13′W / 41.40°N 122.22°W
Black Butte Lava dome 1,902 6,242 9,000-10,000 BP 41°21′47″N 122°20′53″W / 41.363°N 122.348°W
Brushy Butte Shield volcano 1,174 3,852 Unknown 41°10′41″N 121°26′35″W / 41.178°N 121.443°W
Big Cave Shield volcano 1,259 4,131 Unknown 40°57′18″N 121°21′54″W / 40.955°N 121.365°W
Twin Buttes Cinder cones 1,631 5,351 Unknown 40°46′37″N 121°35′28″W / 40.777°N 121.591°W
Tumble Buttes Cinder cones 2,191 7,188 Unknown 40°41′N 121°33′W / 40.68°N 121.55°W
Eagle Lake Field Fissure vents 1,652 5,420 Unknown 40°38′N 120°50′W / 40.63°N 120.83°W
Cinder Cone Cinder cone 2,105 6,907 350 BP 40°32′N 121°19′W / 40.53°N 121.32°W
Chaos Crags Lava domes 2,592 8,503 1,000 BP 40°32′N 121°31′W / 40.53°N 121.52°W
Lassen Peak Lava dome 3,189 10,462 1917 (3) 40°29′31″N 121°30′29″W / 40.492°N 121.508°W
Mount Tehama Stratovolcano 2,815 9,235 600,000 BP 40°26′N 121°33′W / 40.43°N 121.55°W

See also

Notes

  1. ↑ The relationship of the Silverthrone complex with other volcanoes in the Cascade Volcanic Arc is not clear and remains uncertain.[1] However, it is still considered to be a member of the Garibaldi Volcanic Belt, the Canadian portion of the Cascade Volcanic Arc formed by subduction of the Juan de Fuca Plate.[1][2]
  2. ↑ Like Silverthrone, the relationship of the Franklin Glacier complex with other volcanoes in the Cascade Volcanic Arc is not clear and remains uncertain.[3] But it is still considered to be a member of the Garibaldi Volcanic Belt, the Canadian portion of the Cascade Volcanic Arc formed by subduction of the Juan de Fuca Plate.[2][3]

References

  1. ↑ 1.0 1.1 "Silverthrone Caldera". Catalogue of Canadian volcanoes. Geological Survey of Canada. 2009-03-10. Retrieved 2010-02-26.
  2. ↑ 2.0 2.1 "Garibaldi volcanic belt". Catalogue of Canadian volcanoes. Geological Survey of Canada. 2009-04-02. Retrieved 2010-02-26.
  3. ↑ 3.0 3.1 "Franklin Glacier". Catalogue of Canadian volcanoes. Geological Survey of Canada. 2009-03-10. Retrieved 2010-02-26.