Hell's Half Acre Lava Flow
Visitors who take the time to walk through this approximately 4,000-year-old lava flow can learn how it was created and how plants and animals have managed to adapt to this harsh environment. Interpretive...[more]
Upper Snake Field Office
From Idaho Falls, take Interstate 15 south for 15 miles to either of 2 rest areas, and look for directional signs to the trails from the parking lots.
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