Idaho’s Mammoth Cave will be open for summer tours, starting May 1st, 2026, from 10 a.m. to 6 p.m, 7 days a week, including all major holidays.

After Labor Day (September 7th), we will switch to weekends only (Fridays, Saturdays, and Sundays) before we officially close for the winter on September 29th. 

Cave & Museum Admission

Self-Guided Tours

Includes all three attractions – Idaho’s Mammoth Cave tour, the Shoshone Bird Museum of Natural History, and the Richard Arthur Olsen Museum of Natural History

Adults – $15.00
12 years and under – $9.00
5 years and under – Free

There is a good trail and lanterns are provided. If you have flashlights they are always good to bring along. Wearing a light jacket is recommended. The self-guided tour takes about 1/2 hour. You walk about 1/4 mile in and 1/4 mile out. Reservations are not required. Please arrive before 5 p.m for the last tours of the day before closing. We are not handicap accessible. Dogs are not allowed.

Map & Location

*We are located eight miles north of Shoshone, Idaho on Highway 75.