Begin at the Breckenridge ski resort. Your starting point will differ based upon snow and whether Breck is still operating.
Drive to South Park Avenue on the south end of Breckenridge. Turn west and drive 0.2 miles and turn left on Village Road. Drive 0.2 miles on Village Road and turn left into a large parking lot near the Beaver Run complex. Turn left, cross the lot and turn right onto County Road (CR) 751 (dirt). This road leads to the top of the Peak 9 section of the ski area. After 0.5 miles keep left. There is a gated road on the right. Pass a lift and drive around to another intersection near 0.8 miles. Stay right on the main road and begin the climb into the ski area. Near 1.5 miles, stay right. Near 3.0 miles, go under a lift. Stay on the main road and pass the Peak 9 Restaurant. Continue up to the highest lifts near 3.6 miles. This is the trailhead. Past this point, the road is rough and 4WD is required.
In winter and spring while Breckenridge Ski Resort is still operating, you can take the Mercury Super Chair to the start of this route. Above the lift, start up the road. Backcountry access is not always open here, so call the ski patrol to check on the status before you plan a trip. Never duck closed backcountry gates. This violates the Colorado Skier Act, and will get you a hefty fine.