Fort Rock-Christmas Lake Valley Basin
| Use attributes for filter ! | |
| Geology | Maar |
|---|---|
| Age | About 50,000 to 100,000 years old |
| Last eruption | About 50,000 years ago |
| Elevation | 4331563013201716 |
| Locations | Lake County |
| Oregon | |
| United States | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1195081 |
About Fort Rock-Christmas Lake Valley Basin
The Fort Rock-Christmas Lake Valley Basin is the basin of a former inland sea that existed in that region from Pliocene through late Pleistocene time. The Fort Rock basin maar field includes over 30 hydrovolcanic landforms spread over an area of 1,500 square miles.
