Hiking Near Three Forks, Montana

Three Forks sits at 4,075 feet at the confluence of the Jefferson, Madison, and Gallatin Rivers in southwestern Montana—the exact point where the Missouri River begins. Located 31 miles west of Bozeman in Gallatin County, the town of 1,989 is surrounded by river bottomland, rolling foothills, and easy access to mountain ranges in every direction. With 28 trailheads within 50 miles, the hiking spans everything from interpretive river bluff trails at Missouri Headwaters State Park to guided limestone cavern tours at Lewis & Clark Caverns and ancient bison-hunting sites at Madison Buffalo Jump. The Bridger Range and Hyalite Canyon near Bozeman add alpine options within a short drive. This guide covers every major hiking zone accessible from Three Forks. For the full town profile, see our Three Forks guide.

At a Glance

• 28 trailheads within 50 miles
• 5 wilderness areas within 50 miles
• 4+ state parks within 50 miles
• 2 waterfalls within 50 miles
• 43 campgrounds within 50 miles
• Closest trailhead: The Rim TH, 8 miles
• Closest state park: Missouri Headwaters State Park, 4 miles
• Iconic attraction: Lewis & Clark Caverns State Park, 16 miles
• Peak season: April through November (lower elevation extends the season)

Missouri Headwaters State Park

Missouri Headwaters State Park, just 4 miles from Three Forks, marks the exact spot where the Jefferson, Madison, and Gallatin Rivers converge to form the Missouri River—a geographic landmark of national significance. Lewis and Clark camped here in July 1805, naming the three rivers after President Thomas Jefferson, Secretary of State James Madison, and Secretary of the Treasury Albert Gallatin. The park preserves this history through interpretive displays along the trail system.

The park’s trails follow river bluffs above the confluence, offering panoramic views of the three river valleys and the surrounding mountain ranges. Short interpretive loops wind through the bottomland with signage covering Lewis and Clark history, Native American heritage, and the natural history of the headwaters region. The terrain is gentle and accessible to all fitness levels, making it an ideal family outing. Osprey and bald eagles are frequently spotted hunting along the river, and deer browse the cottonwood groves at dawn and dusk.

Lewis & Clark Caverns State Park

Lewis & Clark Caverns State Park, 16 miles west of Three Forks, is Montana’s first and best-known state park. The caverns are one of the largest known limestone cavern systems in the Northwest, featuring guided tours through chambers filled with stalactites, stalagmites, columns, and helictites. The cave tours involve moderate climbing and stooping through narrow passages—a unique underground hiking experience unlike anything else in the region.

Above ground, the park offers surface trails and mountain biking routes across open hillsides above the Jefferson River valley. The trails climb through Douglas fir and grassland with broad views of the river corridor and surrounding ranges. The combination of cave tours and surface hiking makes this a full-day destination. A campground within the park provides overnight options.

Madison Buffalo Jump State Park

Madison Buffalo Jump State Park, 15 miles south of Three Forks, preserves one of the most significant Native American bison hunting sites in the Northern Plains. For thousands of years, indigenous peoples drove bison over the cliff face here—a communal hunting technique predating horses and firearms. Interpretive trails climb to the top of the jump with signage explaining the hunting process, archaeological findings, and the cultural significance of the site.

The trails at Madison Buffalo Jump offer panoramic views across the Madison River valley toward the Tobacco Root Mountains and the Madison Range. The open grassland terrain is exposed but not strenuous, and the combination of history and scenery makes this a rewarding half-day hike. Wildflowers blanket the hillsides in spring and early summer.

Local Trails (Within 15 Miles)

Beyond the state parks, the closest trailheads to Three Forks include The Rim TH, Buffalo TH, and Northridge TH, all approximately 8 miles from town. The Rim Trail follows a ridge above the Gallatin Valley with sweeping panoramas of the valley floor, the Bridger Range to the east, and the Tobacco Root Mountains to the south. These trails offer moderate elevation gain through open grassland and scattered timber, with excellent wildflower displays in June and early July. River walks along the Jefferson, Madison, and Gallatin near their confluence provide flat, easy walking through cottonwood bottomland with outstanding birdwatching—osprey, bald eagles, great blue herons, and kingfishers are common along all three rivers.

Mid-Range Trails (15–35 Miles)

The proximity to Bozeman (31 miles east) opens up a wealth of additional hiking. The Bridger Range north of Bozeman offers strenuous ridge hiking with dramatic alpine scenery, including the popular Baldy Mountain and Sacagawea Peak summits. Hyalite Canyon south of Bozeman features a string of waterfalls along Hyalite Creek, alpine lake destinations like Hyalite and Emerald Lakes, and well-maintained forest trails through the Gallatin National Forest. Cave Gulch TH and East Side TH (both approximately 15 miles) provide additional access to foothill trails in the Horseshoe Hills between Three Forks and Helena.

The Tobacco Root Mountains south of Three Forks offer backcountry hiking through a compact range with alpine lakes and 10,000-foot peaks. The Corbly Gulch TH (26 miles) accesses trails into this less-visited range. The terrain is rugged and remote—fewer people, more wildlife, and a genuine backcountry experience within reasonable driving distance of town.

Wilderness Areas

Five federally designated wilderness areas lie within 50 miles of Three Forks, providing access to some of Montana’s most pristine backcountry. The Lee Metcalf Wilderness in the Madison Range and the Absaroka-Beartooth Wilderness to the southeast anchor the network of protected wildlands surrounding the greater Gallatin Valley. These wilderness areas offer multi-day backpacking trips through alpine terrain, with trails accessing high lakes, ridgeline traverses, and remote valleys. Most wilderness trails involve significant elevation gain and require backcountry preparedness including bear spray, water purification, and navigation tools.

State Parks

Three Forks is uniquely positioned near three distinctive state parks, each offering a completely different hiking experience. Missouri Headwaters State Park (4 miles) provides river bluff trails and Lewis & Clark history. Lewis & Clark Caverns State Park (16 miles) combines underground cave tours with surface trails above the Jefferson River. Madison Buffalo Jump State Park (15 miles) offers interpretive trails at an ancient bison hunting site with panoramic Madison Valley views. Few towns in Montana can match this concentration of state park hiking within such a short drive.

Seasonal Guide

Spring (April–May): Three Forks’s relatively low elevation of 4,075 feet means trails clear earlier here than in most Montana mountain towns. Missouri Headwaters State Park and valley floor trails are typically accessible by mid-April. Madison Buffalo Jump and The Rim Trail follow soon after. Lewis & Clark Caverns opens for guided tours in May (cave temperature is a constant 50°F year-round). Wildflowers bloom across the valley in May, and the three rivers run high with snowmelt. Bear activity increases as animals emerge from hibernation—carry bear spray.

Summer (June–August): Peak hiking season with all trails and parks fully open. Summer highs in Three Forks reach the upper 80s°F, and the valley floor can be warm—start early or seek higher-elevation trails in the Bridger Range or Hyalite Canyon. Lewis & Clark Caverns provides a cool escape on hot days. Afternoon thunderstorms are common in the mountains surrounding the valley. The three rivers drop to wadeable levels by late July, and river walks become particularly pleasant. Wildfire smoke can affect air quality in late July and August.

Fall (September–October): Many locals consider this the finest hiking season around Three Forks. Crowds thin, temperatures cool to comfortable hiking weather, and the cottonwood corridors along the three rivers turn golden. The Bridger Range and Tobacco Roots offer crisp alpine hiking with clear visibility. Missouri Headwaters State Park is especially rewarding in fall when migrating birds pass through the confluence. Most trails remain accessible through October and often into November at valley elevations.

Winter (November–March): Valley floor trails at Missouri Headwaters and along the rivers can be walked year-round when snow cover permits, though the state park facilities close seasonally. Lewis & Clark Caverns typically closes for cave tours in winter. Snowshoeing and cross-country skiing opportunities exist in the surrounding foothills and at higher elevations near Bozeman. Bridger Bowl ski area (via Bozeman, approximately 45 miles) provides downhill skiing.

Trail Safety

The Three Forks area is black bear and mountain lion country, with grizzly bears increasingly present in the foothills surrounding the Gallatin Valley. Carry bear spray on every hike, make noise on the trail, and store food properly. Rattlesnakes are present on lower-elevation trails and rocky outcrops, particularly at Madison Buffalo Jump and along south-facing slopes in spring and summer—watch where you step and place your hands.

Cell service is generally available in Three Forks and along major highways but becomes unreliable on backcountry trails and in canyon bottoms. Carry a paper map or downloaded offline maps for any hike beyond the state parks. The valley floor trails near the rivers can flood during spring runoff in May and June—check conditions before heading out. Deer, eagles, and osprey are common along the rivers; elk and bears frequent the higher-elevation trails in the surrounding ranges.

For more outdoor activities, see our Three Forks fishing guide and the Three Forks weekend itinerary.