Final answer:
Crater Lake National Park, located in Oregon, was formed after the explosion of Mt. Mazama 7,000 years ago. The top of the mountain fell into the volcanic cone, creating a caldera that filled with water to become Crater Lake. The story of its formation is reflected in the oral tradition of local indigenous peoples.
Step-by-step explanation:
Crater Lake National Park is located in the state of Oregon. It's a remnant of a large volcano, Mount Mazama, which blew its top about 7,000 years ago. The top of the mountain fell into the volcanic cone, forming a caldera, which eventually filled with water to become Crater Lake. The Klamath indigenous peoples' oral traditions reflect these geological events, describing a fight between two mountains that resulted in the creation of the lake.
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