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Operating Hours

Bison herd, with animals facing viewer, with snow capped Mission Mountains behind them.  Photo by Pat Jamieson, USFWSWinter Season at the Bison Range - October 20 to May 8

Front Gate Hours: 7:00 a.m. to 8:30 p.m.
Winter Drive now open for the season.    Please note, gate times will change frequently as days get longer.  Please check back for current times.

The Refuge closes to all public use at night.

Visitor Center

CURRENT HOURS - Through May 26, 2015

Open Monday-Thursday, 10 a.m. to 2 p.m. 

Frequently open Fridays, 10 a.m. to 2 p.m. (but can be closed due to staffing limitations)

Closed weekends and Federal Holidays 

The Winter Drive will be open, weather and road conditions permitting.       


RED SLEEP MOUNTAIN DRIVE Opens Saturday, May 9, 2015.


Weather and Road Conditions permitting. 

Be a safe and courteous driver and obey all posted signs. 


We make every effort to keep these dates and times up-to-date but unforeseen events, such as winter weather or road damage, may cause changes or closures. For more information, please contact the National Bison Range office at 406-644-2211, extension 0.  

Last Updated: Mar 27, 2015
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