Aerial view of Mt. Rainier, Washington

At an elevation of greater than 14, 400 feet, Mt. Rainier is the highest Cascade Volcano, and one of the highest peaks in the conterminous United States. It consists primarily of andesite lava flows with a minor amount of interlayered pyroclastic flows. This photo affords a clear view of the Willis Wall and the summit crater.

On to the next slide: Aerial view of Mt. St. Helens and Mt. Rainier, WA
Back to the last slide: Pillow Basalt, Lopez Island, Washington

Back to photos of volcanic rocks and features
Back to Geology photos

Home