South Fork Loop Trail
An easy riverside loop following the South Fork of the Gallatin River, ideal for families, walkers, and casual riders.
A peaceful 1-mile forested loop near Town Center, perfect for a quick outing.
150 feet
Easy
1 mile
South Fork Loop Trail
South Fork Loop is a 1-mile dirt-surfaced trail located just off Aspen Leaf Drive, less than a mile from Big Sky Town Center. Named after the South Fork of the West Fork of the Gallatin River, this easy loop offers a quick and scenic option for walking, running, biking, or Nordic skiing.
The trail begins on an old logging road with a gradual climb before reaching a signed loop junction about a quarter mile in. From there, the route transitions into singletrack, winding through forest with glimpses of river and wetland meadow below. The loop eventually parallels the river before a short climb returns you to the junction.
Its varied width and gentle terrain make South Fork Loop a great beginner-friendly trail — ideal for aspiring mountain bikers, dog walks, or a short post-work lap. It also connects conveniently to the nearby Hummocks and Uplands trail systems, allowing users to extend their outing.
The loop is home to the Story Book Trail in partnership with the Big Sky Library, adding an interactive, family-friendly element to the experience.
Though close to town, this area is active wildlife habitat. Bear sightings have been reported — please recreate responsibly.
More Trail Details
South Fork Loop is especially well-suited for:
- Quick lunchtime or after-work outings
- Beginner mountain bikers
- Families
- Dog owners
- Nordic skiers in winter
The trail is groomed during winter months and serves as part of BSCO’s Nordic skiing trail system.
Wildlife commonly seen in the area includes deer, moose, and elk. Bear activity has also been reported — carry bear spray and remain alert.
Maintained by Big Sky Community Organization (BSCO), South Fork Loop reflects our commitment to protecting accessible, close-to-town recreation that connects community members to nature year-round.
Support a Project that matters to you.
BSCO leads major initiatives that shape Big Sky’s future — from park renovations and trail expansions to youth program scholarships and community recreation improvements. Supporting a campaign allows you to invest directly in projects that expand access, strengthen infrastructure, and ensure long-term stewardship.
Become a Community Sponsor
Businesses and community partners play a critical role in sustaining recreation in Big Sky. Sponsorship opportunities support events, leagues, trail development, and year-round programming at BASE — while aligning your organization with the places and experiences that define this mountain community.
