Craters of the Moon National Monument and Preserve

Explore a volcanic hellscape

Arco, Idaho

Get tickets!


Craters of the Moon is 1,100 square miles of lava fields and the world’s deepest rift (800 feet). It has also been given the nickname “the Devil’s Vomit” by pioneers crossing the park in the 1800s.

The day will start out with a 10 AM orientation by the park guides. After that, you are on your own to explore. You are free to join the  guided cave walk at 1 PM or the presentations on the visitor center patio at 1:45 PM and 3:15 PM.


10:00 AM to 10:30 AM
Mountain Time (US & Canada)
Attendance limit


Craters of the Moon National Monument and Preserve
Highway 26
Arco, Idaho, USA

Special instructions

Over 18 or over 21 only, no disabled access, bring a flashlight, not suitable for children
If folks intend to go on the Cave Walk at 10 am or 1 pm they would need to bring the following:
-Cave Permit (obtain at visitor center, free)
-Sturdy close-toed shoes

Any staff in the visitor center should be able to help for general inquiries:
Craters of the Moon Visitor Center