Current Conditions - Craters of the Moon



  • Alert 1 , Severity ,caution ,, Navigation Please do not rely upon GPS digital navigation systems to find your way to Craters of the Moon. Please note that the Visitor Center at 1266 Craters Loop Road is located just off U.S. Highway 20/26/93 and is not accessed via any unpaved roads.

Summer Ranger Programs Have Begun

Join us for daily Ranger guided walks and talks.

All roads, trails, and facilities are open. However, there is some minor roadwork occurring June 4-8 and there will be partial closures on the North Crater Flow Trail throughout the summer.

If you intend to visit the caves, do not bring clothing or gear that has been in other caves. Obtain a free cave permit at the visitor center before entering any cave.

The Visitor Center is open daily from 8 a.m. until 6:00 p.m.

The Lava Flow Campground is open for first come-first-served camping and water is available in the campground from spigots and in the campground restrooms. The separate Group Campground is open and reservable only through

The physical address for the visitor center is 1266 Craters Loop Road, about half-way between Arco and Carey on US Highway 20/26/93. Please note that there is no access to the main visitor use area of Craters of the Moon by unpaved roads.



Click for a real-time view of U.S. Highway 20/26/93 with Big Cinder Butte in the distance. The NPS Monument entrance is located about 10 miles east of this web-camera.

Last updated: June 4, 2018

Contact the Park

Mailing Address:

Craters of the Moon National Monument and Preserve
P.O. Box 29

Arco, ID 83213


(208) 527-1300

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