Craters of the Moon, Idaho

A vast ocean of lava covers about 400 square miles along the Great Rift of Idaho, with some of the deepest known rift cracks on earth, with the deepest know here to be 800 feet deep. The area contains more than 25 volcanic cones and about 60 distinct solidified lava flows, ranging in age from 15,000 to 2,000 years ago.

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