The site is currently OPEN for the Summer season! Hours are: 9am to 5pm/seven days a week. Guided tours run every half-hour, with the first guided tour starting at 9:30, and the last starting at 4:30. 

Note: Our last day of operations for the Summer season will be Saturday, September 27th. The site will then remain CLOSED until May 2026.

For questions, please call the site at: 307-422-3425.

Additional Information: 

- School tours are allowed, but require advanced reservations. 

- Due to increasing visitation, we STRONGLY encourage you call the site to make a reservation for the time/date you plan on visiting.

- The site has three parking areas, including an RV parking area, with a map below.