The National Bison Range, established in 1908 as one of America's first federal wildlife refuges, protects a free-roaming bison herd on 18,500 acres of native bunchgrass prairie in the Mission Valley of northwestern Montana, 50 miles north of Missoula on US-93. The refuge occupies gently rolling hills above the southern approaches to Flathead Lake, with panoramic views of the Mission Mountains to the east — one of Montana's most dramatic wilderness skylines. The primary visitor experience is the Prairie Drive, a 19-mile one-way gravel loop that climbs from valley floor through open grassland to a ridge-top viewpoint before descending back to the entrance. The drive takes 90 minutes to two hours depending on stops, and bison are frequently encountered at close range from the vehicle; federal regulations require remaining inside the car and maintaining a 50-foot buffer from all wildlife. Beyond bison, the refuge supports white-tailed and mule deer, pronghorn, bighorn sheep, elk, black bear, and over 200 bird species including western meadowlarks and ferruginous hawks. The visitor center at the refuge entrance has exhibits on bison conservation history and the near-extinction and recovery of the American bison from fewer than 1,000 animals at the turn of the 20th century. From Missoula, the drive north takes one hour on US-93 through the Flathead Indian Reservation, with Ronan as the closest town for fuel and food. The National Bison Range is now jointly administered by the Confederated Salish and Kootenai Tribes under a 2020 agreement returning management to tribal stewardship — a significant milestone in the history of the refuge and the broader movement toward Indigenous land management. Entrance is $10 per vehicle. The Prairie Drive is open daily from April through October; a shorter 5-mile loop operates during winter when the long loop closes.
How to get there
- Mode
- Car
Location
58355 Bison Range Rd, Charlo, MT 59824
47.3487, -114.2647 View on map
Highlights
- Drive the 19-mile Prairie Drive loop for close-range encounters with free-roaming bison herds on native Montana grassland
- Watch sunrise illuminate the Mission Mountains from the ridge-top viewpoint above the refuge
- Spot pronghorn, bighorn sheep, elk, and over 200 bird species alongside the bison throughout the refuge
- Learn the near-extinction and recovery story of the American bison at the refuge visitor center
- Visit one of the first federal wildlife refuges in the United States, now managed by the Confederated Salish and Kootenai Tribes
Tips for visiting
- Arrive at opening time (typically 7 a.m.) to maximize wildlife activity before the midday heat sends animals into shade or cover
- Never exit the vehicle on the Prairie Drive — regulations require staying inside for both wildlife safety and visitor safety
- April–May for calving season and September–October for the rut are the most dramatic windows for bison behavior
- The 19-mile loop is one-way gravel and not suitable for very low-clearance vehicles or large motorhomes over 35 feet
- Combine with nearby Flathead Lake or the St. Ignatius Mission (8 miles north) for a full day in the Mission Valley
When to visit
April and May for bison calves and green prairie grasses; September and October for the rut and golden autumn light on the Mission Mountains. Morning arrivals maximize wildlife sightings before animals move off the open grassland in midday heat.
Accessibility
The visitor center is wheelchair accessible. The Prairie Drive is a gravel road that all standard vehicles can drive without exiting; visitors with limited mobility can experience the full wildlife refuge from the car. The shorter winter loop is also vehicle-accessible. Visitors do not need to walk to enjoy the primary bison viewing experience.
Frequently asked questions
Is the National Bison Range a national park or a wildlife refuge?
It is a National Wildlife Refuge, originally managed by the U.S. Fish and Wildlife Service and since 2020 increasingly operated by the Confederated Salish and Kootenai Tribes under a co-stewardship agreement.
How close do visitors typically get to bison on the Prairie Drive?
Bison frequently cross the road and graze within meters of stopped vehicles. Regulations require staying inside the car and not approaching within 50 feet; the animals are wild and can move unpredictably and quickly.
What is the entrance fee for the National Bison Range?
Entry is $10 per vehicle. America the Beautiful Annual Passes are accepted at the entrance.
When are bison calves visible at the refuge?
Calves are born primarily in April and May. Bright rust-orange newborns appear alongside adult cows during this window, making spring one of the most rewarding and photogenic seasons to visit.