| a body of water occupying a roughly circular, steep-sided volcanic crater or caldera. |
| a lake in the crater of an extinct volcano in SW Oregon, in Crater Lake National Park. 20 sq. mi. (52 sq. km); 1996 ft. (608 m) deep. |
| Crater Lake A lake of southwest Oregon in a volcanic crater of the Cascade Range. At 589.3 m (1,932 ft) deep, it is the second-deepest lake in North America and the deepest in the United States. The lake and surrounding parkland are popular tourist attractions. |
