The crater from which the lake was formed, about 6 miles (10 km) in diameter,.... feet lake

The crater from which the lake was formed, about 6 miles (10 km) in diameter, is the remnant of Mount , a volcano that rose to probably 12,000 feet (3,700 metres) until an eruption about 7,000 years ago destroyed the upper portion (see ). Crater Lake has an average surface elevation of 6,173 feet (1,881 metres) above sea level and an average depth of about 1,500 feet (457 metres). Underwater mapping of the lake in 2000 established a maximum depth of 1,943 feet (592 metres)the previous recorded maximum had been 1,932 feet (589 metres)making it the deepest lake in the United States and the seventh deepest in the world. APA style: Crater Lake.