USGS/Cascades Volcano Observatory, Vancouver, Washington

Fort Rock Basin, Oregon
Christmas Lake Valley Basin
Hole-In-The-Ground

Background and Information
- DESCRIPTION: Fort Rock and Vicinity -- Geographic Setting, and Geologic and Eruptive History -- includes Big Hole ... Christmas Lake Valley Basin ... Connley Hills ... Flat Top ... Fort Rock ... Fort Rock Basin ... Green Mountain S ... Green Mountain SW ... Hagar Mountain ... Hayes Butte ... Hole-in-the-Ground ... Lost Forest ... Moffitt Butte ... Seven-Mile Ridge ... Silver Lake Graben ... Table Rock ... Table Mountain ...
Special Items of Interest
- America's Volcanic Past - Oregon -- volcanic highlights and features
Items of Interest
- America's Volcanic Past - Oregon -- volcanic highlights and features
- Big Hole - Description
- Christmas Lake Valley Basin - Description
- Fort Rock - Description
- Fort Rock Basin - Description
- Hole-in-the-Ground - Description
- Maars and Tuff Cones - Description -- general information about maar volcanoes and tuff cones
- Maars and Tuff Cones - Menu -- general information about maar volcanoes and tuff cones
- Moffitt Butte - Description
- Oregon Volcanoes and Volcanics - Menu
- Table Rock - Description
Useful Links
- Useful Links - Oregon

Other Menus of Interest

Maars and Tuff Cones Menu -- CVO Menu
Oregon Volcanoes and Volcanics Menu -- CVO Menu

URL for CVO HomePage is: <http://vulcan.wr.usgs.gov/home.html>
URL for this page is: <http://vulcan.wr.usgs.gov/Volcanoes/Oregon/FortRockBasin/framework.html>
If you have questions or comments please contact: <GS-CVO-WEB@usgs.gov>
03/06/02, Lyn Topinka

Fort Rock Basin, Oregon Christmas Lake Valley Basin Hole-In-The-Ground

Fort Rock Basin, Oregon
Christmas Lake Valley Basin
Hole-In-The-Ground