Geology and Minerals

Black Buttes

The Black Buttes, also known historically as the Sawtooth Rocks, make up a stratovolcano in the Cascade Volcanic Arc in Whatcom County, Washington, United States. Glacially eroded remnants of this extinct volcano rise above the Deming Glacier, part of the glacier system of the nearby volcano, Mount Baker. There are three major peaks—Colfax, Lincoln, and Seward—all of which can be climbed. The volcano was last active during the Middle Pleistocene from 495,000 to 288,000 years ago. Mount Baker, a much younger volcano, sits on top of lava erupted from Black Buttes Volcano.

Also on this shelf

See also

• ▸Hallucigenia
• ▸Argentine Antarctica
• ▸Derbyshire Dome

Uncatalogued shelf

Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.