This is a classic out and back trail that you can start from either Frisco or Breckenridge. This trail description starts at the trailhead near Main St. in Frisco.
Directions: Frisco is about 70 miles from Denver. Take I70 West from Denver. Drive about 70 miles to exit 203. Go south on Route 9. In about 1 mile, the intersection with Main St. will be on your right. Turn right onto Main St, going west. Follow Main St to 2nd Avenue. Turn left (south) on to 2nd Avenue and follow this until it ends in the parking lot to the trailhead for the Peaks Trail and Rainbow Lake.
Prescribed trail: From the trailhead, follow the singletrack as it heads south. The entire Peaks Trail is easy to follow and is well signed. At 0.6 miles, you will see the first "Trail" sign. At 0.9 miles, you will arrive at Rainbow Lake (POI #2). Enjoy the view. Continue following the singletrack past the lake and at 1.1 miles the singletrack dumps you out onto a jeep road junction. This is the junction with Miners Creek Road and the Peaks Trail (POI #3). Cross the road and you will see the sign for the Peaks Trail. Follow this singletrack as it parallels the Miners Creek Road. At 3 miles, you will come to an intersection with the Gold Hill trail on your left. Do not take this. Continue on the Peaks Trail toward Breckenridge/Miners Creek Trail (POI #4). At 3.3 miles you will come to another intersection with the Miners Creek Trail. Follow the sign for the Peaks Trail toward Breckenridge (POI #5). At around 4.2 miles the trail opens up to a meadow (POI #6). Continue following the Peaks Trail. At 7.4 miles you will cross the Cucumber Creek jeep road (unmarked; POI #7). You are near the finish of the trail. Continue on the singletrack and at 8.1 miles the trail dumps you out onto a jeep road and the Peaks Trailhead Parking lot near Breckenridge Ski Resort, near Peak 7 off of Ski Hill Road. This is the end of the trail. Turn around and return the way you came.
Length of trail: 16.2 miles out and back (8.1 miles one way)
Elevation gain: 1690 feet (out and back)
Starting elevation: about 9100 feet
Highest elevation: about 10,200 feet
Even though this is an easy trail to follow, it is always a good idea to bring a topographic map and compass to help navigate the trail.
Keep in mind this is a high altitude ride. Be prepared for rapid weather changes, hypothermia, dehydration, altitude related illnesses, etc.
The trail is heavily used by hikers, runners, other mountain bikers, dogs, etc. Be courteous and slow down while passing others. The trail can be very busy especially on weekends.
I really enjoy mountain biking this trail in either direction. It is a beautiful trail with some challenging spots, but nothing that can't be conquered. You can also use make it a loop by using Ski Hill Rd and the Breck-Frisco Pathway. If you want to go in the clockwise direction, you can ride the gondola up to peak 7 instead of riding up (I do this when I am taking less experienced bike riders with me, as they will enjoy the Breck to Frisco direction more than the opposite direction). You can do some other loops if you use Gold Hill trail. Visited on Sep 03, 2014
In the winter, consider this for a day off from skiing as a little day trip adventure, hiking or snow showing depending on conditions: use the shuttle or gondola to peak 7, or have a non-hiker drop the hikers off at the end of the trail up on county road 3, just past peak 7 base, the trail head and parking is on the left, then hike into Frisco, – around 8 miles to Frisco. In winter, we used to go to a little pub, family style place and have burgers & beer feeling like heroes conquering the wilderness, then we would catch the Summit County Stage back to Breck. It was close to 3 hours on the trail on snow shoes,which was our favorite. In summer, we’d make the round trip by mtn. bike. In winter we rarely encountered people on the middle 7 miles on the well marked trail, for the first ½ mile we'd run into dog walkers doing an in/out.