Operating Hours & Seasons

Visitor center porch pathway with fossil butte in background
Fossil Butte National Monument Visitor Center

NPS / Nora Halloran


Visitor Center Hours

The Visitor Center is open year-round, but park operating hours vary with the season.

  • Spring: March 1 - May 25, daily 9:00 am - 4:30 pm
  • Summer: May 26 - September 3, daily 9:00 am - 6:00 pm
  • Fall: September 4 - October 13, daily 8:00 am - 5:00 pm
  • Winter: October 14 - March 1, open 9:00 am - 4:30 pm (closed on Sundays during December, January, and February).
To view prepared fossils on exhibit, the best place to look is our Visitor Center. As most fossils are trapped within horizontal layers of rock, they must be split and prepared before you can view the diversity and abundance of fossils found in this area.

The entrance road gate is closed only during severe winter storms. The scenic drive with access to the picnic area and Nature Trail is closed from November until late May (weather-dependent).

Camping is not available.

Last updated: September 7, 2018

Contact the Park

Mailing Address:

P.O. Box 592
Kemmerer, WY 83101


(307) 877-4455

Contact Us