Diamond Peak (Oregon)

From Wikipedia, the free encyclopedia

Diamond Peak is a dormant shield volcano in south west Oregon and is part of the Cascade Range. The 8,744 foot (2,665 meter) mountain is in the Diamond Peak Wilderness and near Willamette Pass.

Composed of basaltic andesite, the volcano is older than the last ice age but probably younger than 100,000 years. It first began erupting from its northern summit and then from a new vent a little to the south, which is now the main peak. The mountain has several cirques from glacial erosion. It lies directly on the Cascade Crest and therefore receives a heavy snow pack. Snow fields on the northern side may have been glaciers as recently as 100 years ago.

[edit] References

• Description at the Cascades Volcano Observatory

[edit] External links

• USGS DRG
• Diamond Peak at skimountaineer.com
• Maps and aerial photos
  • WikiSatellite view at WikiMapia
  • Topographic map from TopoZone
  • Aerial image from TerraServer-USA
  • Surrounding area map from Google Maps
  • Location in the United States from the Census Bureau

Volcanoes of Oregon v • d • e
High Cascades		Mt Hood | Olallie Butte | Mt Jefferson | Three Fingered Jack | Hogg Rock | Hoodoo Butte | Hayrick Butte | Black Butte | Mt Washington | Belknap Crater | Black Crater | Three Sisters | Broken Top | Tumalo Mtn | Mt Bachelor | Maiden Peak | Diamond Peak | Howlock Mtn | Mt Thielsen | Mt Bailey | Mt Mazama / Crater Lake | Mt Scott | Union Peak | Pelican Butte | Mt McLoughlin | Aspen Butte
Western Cascades		Boring Lava Field (Mt Sylvania | Mt Tabor | Rocky Butte | Powell Butte | Larch Mtn)
Eastern Cascades		Pilot Butte | Lava Butte | Newberry Volcano | Yamsay Mtn
Basin and Range		Big Hole | Hole-in-the-Ground | Fort Rock | Diamond Craters	Columbia Plateau		Columbia River Basalt Group