The Great Rift is one of only two such features in the world. At 635 square miles, it is considered to be the largest, deepest, and most recent volcanic rift system in the continental United States. Many...[more]
Great Rift Backcountry Area
Burley Field Office
From I-86 northeast of American Falls, take exit 40 and head northeast on ID 39 past American Falls Dam. After passing the dam, turn left on Center Pleasant Valley Road (2600 S) and drive about 7 miles east to Lava Bed Road. Turn right and drive north about 6 miles to Crystal Ice Cave Road. About a 6 mile drive on a dirt road will take you in the general vicinity of the Great Rift to a spot called "The Frying Pan."
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