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The McDermitt Caldera is a large, oval-shaped caldera west of McDermitt in southeastern Oregon and northern Nevada in the United States. It is about 28 miles (45 km) long north–south and 22 miles (35 km) wide east–west. [3] The western part of the caldera is in the Trout Creek Mountains, and the northern part is in the Oregon Canyon Mountains.
McDermitt's economy has historically been based on mining, ranching and farming. In the period 1917 to 1989 it was home to four nationally significant mercury mines in the McDermitt Caldera – Bretz, Opalite, Cordero and McDermitt – which from 1933 to 1989 were the largest producers in North America.
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One broad geologic feature in the Trout Creek Mountains is McDermitt Caldera. The oval-shaped caldera is a collapsed lava dome that straddles the Oregon–Nevada border on the eastern side of the range south of the Oregon Canyon Mountains. [23] [24] It is about 28 miles (45 km) long and 22 miles (35 km) wide. [24]
Humboldt County is a county in the U.S. state of Nevada.As of the 2020 Census, the population was 17,285. [1] It is a largely rural county that is sparsely populated with the only major city being Winnemucca which has a population of 8,431. [2]
Progression of ages of rhyolitic (silicic) lavas and calderas from McDermitt Caldera to Newberry and Yellowstone calderas (red circles: MC, NC, & YC). Numbers are ages in millions of years. KBML – Klamath–Blue Mountains Lineament, HLP – High Lava Plains, EDZ – Eugene—Denio Zone, BFZ – Brothers Fault Zone, SMF – Steens Mountain ...
Location of the Olympic-Wallowa Lineament Is the OWL an optical illusion?. The Olympic–Wallowa lineament (OWL) is a series of geologic structures oriented from northwest to southeast for 650 km (400 mi) across Washington and northeast Oregon in the United States, passing through the Seattle area and including notable features east of the Cascade Range such as the Yakima Fold Belt and Wallowa ...
Volcanoes that have produced explosive VEI-7 eruptions.Such eruptions release a tephra volume of at least 100 km 3 (24 cu mi) with devastating long-term effects on the surrounding area and profound short-term effects on global climate.