Join the Southwest Montana Mountain Bike Association for a backcountry trail-work day south of Big Sky. Address the troublesome upper portions of the First Yellow Mule trail, where erosion and rugged alpine conditions have made the trail rutted in places or non-existent in others. SWMMBA is working with local bikers to arrange shuttles to the Buck Ridge Trailhead leaving from the Big Sky Community Park at 8am. Afterward, workers will ride to the Big Sky Community Park from the First Yellow Mule trailhead / Ousel Falls parking area for a SWMMBA-sponsored BBQ! Refreshments will also be provided for volunteers.