Yes, the lake is really that blue! The color is due to the clarity of the water. The lake (1,943 feet deep) lies inside a caldera, or volcanic basin, and was created when the 12,000 foot high Mount Mazama collapsed 7,700 years ago following a large eruption. Because the lake is filled almost entirely by snowfall, it is one of the clearest lakes in the world. It has set a record of 143 feet of clarity! It does not have any ingress or egress, so the water is either snowfall or rain. This area receives 44 inches of snow every year!
It is also the deepest lake in the United States and the seventh deepest lake in the world.
You might find these interesting:
Facts and Figures
- Crater Lake is the deepest lake in the United States
- The second deepest lake in the Western Hemisphere
- The seventh deepest lake in the world
- Maximum lake depth: 1932 feet
- Average lake depth: 1500 feet
- Maximum lake width: 6 miles
- Lake surface elevation: 6176 feet
- Wizard Island elevation: 6940 feet
- Wizard Island height above water: 764 feet
- Hillman Peak, highest point on rim: 8151 feet
- Mount Scott, highest point in park: 8929 feet
- Union Peak: 7709 feet
- Rim Village elevation: 7100 feet
- Precipitation, yearly average: 66 inches
- Snowfall, yearly average: 44 feet
- Maximum snow depth at Park Headquarters: 21 feet
- Park Size: 183,224 acres
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