Goat Rocks is an extinct stratovolcano in the Cascade Range, located between Mount Rainier and Mount Adams in southern Washington, in the United States. Part of the Cascade Volcanoes, it was formed by the subduction of the Juan de Fuca Plate under the western edge of the North American Plate. The volcano was active from 3.2 million years ago until eruptions ceased between 1 and 0.5 million years ago. Throughout its complex eruptive history, volcanism shifted from silicic explosive eruptions to voluminous, mafic activity.
The Goat Rocks, with Gilbert Peak at upper left
Old Snowy Mountain from the north, with the snow-covered McCall and Packwood Glaciers flanking the peak
Goat Ridge. The base of Mount Adams is visible.
Goat Rocks with Mt. Rainier in background
Mount Adams, known by some Native American tribes as Pahto or Klickitat, is a potentially active stratovolcano in the Cascade Range. 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.
Mount Adams from the west-northwest
Mount Adams from Wasco County, Oregon
Meadows at Mount Adams Wilderness
Panoramic view from the relatively flat summit area of Mount Adams, with the center of the image looking due west towards Mount St. Helens. Nine Cascade Volcanoes are visible (not including Adams itself). From left to right: Three Sisters complex, Mount Jefferson, Mount Hood, Mount St. Helens, Mount Rainier, Mount Baker, and Glacier Peak. The Olympic Mountains can be seen between St. Helens and Rainier, nearly 150 miles away.
