Described as a "weird and scenic landscape", Craters of the Moon certainly lives up to its reputation. It was established in 1924 to preserve the unique volcanic features of this enormous lava field. The 750,000-acre monument contains a diverse array of volcanic features including volcanic rifts, cinder cones, spatter cones, shield volcanoes and lava tube caves. A surprising number of plants and animals have adapted to live in the harsh volcanic and high desert environment. It is an excellent site for hiking, bird watching, photography, backpacking and caving (permits required). The monument is cooperatively managed by the National Park Service and Bureau of Land Management. Summer activities include guided cave walks and evening programs at the campground. Winter activities include Winter Ecology Workshops, snowshoeing, and cross-country skiing. School groups are welcome to visit the monument and curriculum resources for teachers are available on our website. Teachers' workshops are also offered. Visit to view an interactive events calendar.


Central Idaho, 18 mi. SW of Arco on Hwy. 20/26/93


18 mi. SW of Arco on Hwy. 20/26/93

Nearest City


Mailing Address

PO Box 29
Arco ID, 83213


All Year


Park open 24 hours/day year-round. Visitor Center: Memorial Day-Labor Day 8am-6pm, rest of the year 8am-4:30pm. Closed winter holidays.


Visitor Center: Free; $8 per car into park. Entrance station accepts The National Parks and Federal Recreation Lands, Senior, Military, and Access Passes.


Campsites, Gift Shop, Handicap Access, Motor Coach Parking, Parking, Restrooms, Vault Toilets, Visitor Center

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