Skip to main content
U.S. flag

An official website of the United States government

Crater Lake, Oregon sunrise

Detailed Description

Crater Lake inspires awe. Native Americans witnessed its formation 7,700 years ago, when a violent eruption triggered the collapse of a tall peak. Scientists marvel at its purity—fed by rain and snow, it’s the deepest lake in the USA and one of the most pristine on Earth. 


Public Domain.

Photo provided by Miel Corbett.