Search results
Results from the WOW.Com Content Network
Mount Rainier [a] (/ r eɪ ˈ n ɪər / ray-NEER), also known as Tahoma, is a large active stratovolcano in the Cascade Range of the Pacific Northwest in the United States. The mountain is located in Mount Rainier National Park about 59 miles (95 km) south-southeast of Seattle. [9]
Mount Rainier National Park is a national park of the United States located in southeast Pierce County and northeast Lewis County in Washington state. [3] The park was established on March 2, 1899, as the fourth national park in the United States, preserving 236,381 acres (369.3 sq mi; 956.6 km 2) [1] including all of Mount Rainier, a 14,410-foot (4,390 m) stratovolcano.
Mount Rainier is an active volcano. With 28 major glaciers, it’s also the “most glaciated peak” in the contiguous U.S. and the tallest peak in the Cascade Range, according to the park.
The snowcapped peak of Mount Rainier, which towers 4.3 kilometers (2.7 miles) above sea level in Washington state, has not produced a significant volcanic eruption in the past 1,000 years.
Name Type Elevation (m) Elevation (ft) Last eruption date Last eruption VEI Location Boring Lava Field: Volcanic field: 1,236: 4,055: Pleistocene: Rocky Butte
Washington has a majority of the very highest volcanoes, with 4 of the top 6 overall, although Oregon does hold a majority of the next highest peaks. Even though Mount Rainier is the tallest, Mount Shasta in California is the largest by volume, followed by Washington's Mount Adams. Below is a list of the highest Cascade volcanoes:
South Sister remained dormant for 15,000 years, after which its composition shifted from dacitic to more rhyolitic lava. [50] An eruptive episode about 2,200 years ago, termed the Rock Mesa eruptive cycle, first spread volcanic ash from flank vents from the south and southwest flanks, followed by a thick rhyolite lava flow.
Mount Adams, known by some Native American tribes as Pahto or Klickitat, [4] is an active stratovolcano in the Cascade Range. [5] Although Adams has not erupted in more than 1,000 years, it is not considered extinct. It is the second-highest mountain in Washington, after Mount Rainier. [6]