Support the great trail build singletrack project at Great Bear
Falls Area Singletrack (FAST), in partnership with Great Bear Ski Valley, is developing over 10 miles of multi-use trails designed for mountain biking, hiking, and trail running. Built for skill progression and long-term sustainability, this project will elevate Great Bear into a premier year-round outdoor recreation destination in Sioux Falls.
Together, we can make Great Bear a vibrant hub for outdoor recreation and adventure.
Join us in bringing this exciting vision to life for our community!
Current trails at Great Bear are not open to bikes. Bikes will be allowed after the construction of our project is complete. Thank you for your cooperation!
Behind the Build: Great Bear Progress Updates
Phase 1 construction is underway
Trail construction is officially underway. Phase 1 includes approximately 5 miles of fresh singletrack integrated with existing trails. Work began in July of 2025 and includes sustainable trail building techniques that support safe, durable riding and hiking for years to come. As machines roll and routes take shape, this long-envisioned project is moving from plan to reality—and it’s happening fast.
Funding
FAST received the IMBA Trail Accelerator Grant in December 2022, which funded professional planning and design through IMBA Trail Solutions. While this grant helped launch the project, additional capital is still needed to complete the full trail system. Every donation brings us closer to finishing the build and opening up the entire network to the public. With your support, we’re making it happen.
Why This Project Matters
This trail system will bring inclusive outdoor recreation to Great Bear Ski Valley—welcoming bikers, hikers, and runners of all skill levels with expanded, year-round access. Designed with sustainability in mind, the trails follow the natural contours of the land to reduce erosion and minimize environmental impact—so they last longer with less maintenance. Beyond health and wellness, this project fuels local tourism, strengthens community connections, and delivers one of the highest returns on investment for our region. FAST is making every dollar count through thoughtful planning, expert partnerships, and a long-term vision for outdoor access.
How to Get Involved
Support the Build
You can be part of building Sioux Falls’ next adventure destination. Donate now to support trail construction, or subscribe to stay in the loop on progress and volunteer opportunities. These trails are for everyone—bikers, hikers, and runners—and they’re coming to Great Bear thanks to your support.
Project Timeline
In November 2021, FAST secured an updated agreement with the City of Sioux Falls and Great Bear Ski Valley to expand access to Great Bear Ski Valley and begin planning. By the end of 2022, we were awarded a key grant to kickstart professional trail design. In summer 2025, construction of Phase 1 began with IMBA Trail Solutions and local contractors. The full vision includes over 10 miles of trail, designed to connect skill zones, scenic overlooks, and existing paths in a fully integrated system.
What’s happened so far…
Scroll to browse through our project milestones so far.
donate today
As Sioux Falls continues to grow and our love for the outdoors deepens, we invite everyone from seasoned Great Bear Ski Valley patrons to the broader community to support this transformative project. Together, we can make Great Bear a vibrant hub for outdoor recreation and adventure. Join us in bringing this exciting vision to life for our community!
Project Resources
Want to dig deeper into the details? Explore and download helpful materials related to the Great Bear trail project. From trail maps and concept plans to overview sheets and promotional rack cards, these resources provide a closer look at the vision, design, and impact of the build. Whether you're a supporter, volunteer, land manager, or just curious about what’s ahead, these documents are a great way to stay informed and share the story of Great Bear’s transformation.
Great Bear News
Other Trails
-
![Photo of mountain bike rider on trail at Leaders Park.]()
Leaders Park
Leaders Park is a hand-built, multi-use trail system, boasting around 4 miles of maintained singletrack twisting through pristine terrain for mountain bikers, runners, and hikers to enjoy year round, free of charge. The park sits just off the 6th Street and Leadale Avenue and just west of I-299 South.
-
![Photo of cyclist on trail at Yankton Trail Park.]()
Yankton Trail Park
Yankton Trail Park singletrack is a hand-built, multi-use trail system, with around 1 mile of maintained singletrack twisting through flat terrain in a small wooded area along the river green space. This trail is perfect for beginner mountain bikers, runners, and hikers to enjoy year round. The park can be found along South Minnesota Ave.
-
![Photo of mountain bike rider on trail at Tuthill Park.]()
Tuthill Park
Tuthill Park singletrack is a machine-built, multi-use trail system, boasting around 3 miles of well maintained singletrack twisting through pristine terrain for mountain bikers, runners, and hikers to enjoy year round, free of charge. The trail surface is packed dirt with stone hard facing and wood bridges.
-
![Photo of trail at Legacy Park.]()
Legacy Park
Legacy Park singletrack is a machine-built, multi-use trail system, with around 2 miles of maintained singletrack twisting through flat terrain in a small grassy open area along the Sioux Falls bike path. This trail is perfect for beginner mountain bikers, runners, and hikers to enjoy year round. The park can be found along West 12th Street.
-
![Image of Spencer Park singletrack.]()
Spencer Park
Spencer Park singletrack is a hand-built, multi-use trail system, with around a mile of maintained singletrack twisting through trees and terrain along the Sioux Falls bike path and the Big Sioux River Greenway. Parking for this park can be found along Cliff Ave. and trailheads can be accessed via the Sioux Falls bike path.
-
![Image of Pasley Park]()
Pasley Park
Pasley Park singletrack is a hand-built, multi-use trail system, with around a mile of maintained singletrack twisting through trees and terrain along the Sioux Falls bike path and the Big Sioux River Greenway. Parking can be found along Southeastern Ave. and trailheads can be accessed via the Sioux Falls bike path.
-
![Image of Dunham Park singletrack]()
Dunham Park
Dunham Park is a hand-built, multi-use trail system, with around 1.7 miles of maintained singletrack twisting through pristine terrain for mountain bikers, runners, and hikers to enjoy year-round, free of charge. The park sits just off of Marion Rd. and is also home to ball fields, restroom facilities, a playground, and has access to the Sioux Falls city bike trail.
-
![Riverdale Park Trail Feature]()
Riverdale Park
Riverdale Park is a hand-built, multi-use trail system, with around .5 miles of maintained singletrack twisting through pristine terrain for mountain bikers, runners, and hikers to enjoy year-round. Its hand-built trails feature mostly natural surfaces, rock features, log rollovers and other optional stunts.
-
![Image of River Boulevard Greenway trail.]()
River Boulevard Greenway
River Boulevard Greenway is a machine-built, multi-use trail system, with under 1 mile of maintained singletrack flowing through flat terrain. This trail features natural surfaces, hard-packed dirt, rock features and a tree ride-through. The greenway and trail is accessible via the Sioux Falls bike path and parking is available on E River Blvd.
earn some instant trail karma
Help us keep the singletrack flowing by making a contribution to our organization.