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Explore the States Oregon
Crater Lake is the deepest lake in the United States.
Crater Lake is the deepest lake in the United States.

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Mount Mazama and Crater Lake
Did you know there was a volcano in Oregon? And that when it erupted and collapsed it created a lake?

Around 7,000 years ago, the volcano Mount Mazama erupted and collapsed and, as a result, formed Crater Lake. Molten lava cooled and sealed up the bottom, forming a huge bowl-shaped crater. Over the years, rainfall and melting snow have filled it with over four trillion gallons of water, making it the deepest lake in the United States. The lake is also known for its deep blue color.

Accounts of the eruption of Mount Mazama are found in stories handed down by the Klamath Indians, who are descendants of the ancient Makalak people. According to Makalak legend, there was a battle between Skell, the spirit of the sky, and Llao, the spirit of the mountain. When Skell defeated Llao, the spirit of the mountain's home, Mount Mazama, erupted and collapsed.

Crater Lake is now a national park and draws approximately 500,000 visitors a year.

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