Fees & Passes

Free
No entrance pass required

An entrance pass is not required to access Fossil Butte National Monument.

Other National Park Service sites may require an entrance pass or fee. Depending on your trip plans, an interagency pass may save you money.

2025 Free Entrance Days in the National Parks

Come experience the national parks! All National Park Service sites that charge an entrance fee will offer free admission to everyone (other fees, including timed entry or reservation fees, may apply). Mark your calendar for these entrance fee-free dates:

 
Fossil Butte National Monument no longer issues the free interagency passes. The Bureau of Land Management (BLM) office in Kemmerer, WY issues these passes.
 

Your Fee Dollars At Work

Discover how the entrance fees collected at other national park sites are used to improve the visitor experience.
 
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    Last updated: January 30, 2025

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    Contact Info

    Mailing Address:

    P.O. Box 592
    Kemmerer, WY 83101

    Phone:

    307 877-4455

    Contact Us