Spanning 1.8 million acres across southwestern Montana and touching the northern border of Yellowstone National Park, Gallatin National Forest offers direct access to some of the most dramatic mountain terrain in the Northern Rockies. Established in 1899, this forest forms a critical part of the Greater Yellowstone Ecosystem, one of the largest intact temperate ecosystems in the world.
The forest’s 63 campgrounds range from developed sites like Blackmore Campground near Bozeman to rustic backcountry cabins including Little Bear Cabin, Spanish Creek Cabin, and Sage Creek Cabin—many available for reservation year-round. Bozeman, just 20 miles from the forest boundary, serves as the primary gateway with full services, gear shops, and outfitters.
Anglers find blue-ribbon trout waters throughout the forest, particularly along the Gallatin River corridor immortalized in “A River Runs Through It.” Hikers can explore hundreds of miles of trails cutting through alpine meadows, past glacial lakes, and into designated wilderness areas including the Absaroka-Beartooth and Lee Metcalf Wilderness.
Peak season runs from late June through September when high-elevation trails shed their snowpack and wildflowers blanket the mountain slopes. Fall brings fewer crowds and excellent wildlife viewing as elk move through migration corridors. Winter transforms the forest into a backcountry skiing and snowmobiling destination, though many roads close from November through May.
Access is straightforward via Highway 191 south from Bozeman or through several forest roads branching from Interstate 90.
Explore Nearby
- Garnet Winter Trails — Public Land in Montana
- Axolotl Lakes — Public Land
- Battle of Pilot Knob State Historic Site — State Park in Missouri
- Battle of Lexington State Historic Site — State Park in Missouri
- Beartooth Highway — Scenic Byway in Montana
