Summit County Bike Trails: Boreas Pass
By the numbers
Distance: 12.5 miles
Time: 2-3 hours
Elevation: 10,360-11,481 feet
Type: Out and back, dirt road
Season: Mid-June to early October
Throughout the summer, Explore Summit Weekender will run mountain bike and recpath trail guides from our annual Explore Summit County Bike Guide. The rides will be a mix of dirt trails, singletrack and paved roads from across Summit County.
Boreas Pass Road follows an abandoned narrow-gauge railroad bed to scenic views and historic remains on the Continental Divide, south of Breckenridge. The popular Bakers Tank Trail also can be accessed along this route.
Know Before You Go: Well-maintained and gradual, this road is excellent for novices. When the gate near the trailhead is closed, the road is still snowy and wet. Cyclists should avoid this ride until the gate is opened. Expect vehicle traffic, which can be heavy on weekends. Boreas Pass is above timberline; be prepared for changing weather.
Parking: From I-70, drive south through Breckenridge on Highway 9. Turn left onto Boreas Pass Road at the stoplight at the south end of town. Drive 3.5 miles up this winding road to pavement’s end. Park in a pull-off on the left where the road becomes dirt.
Description: Begin climbing toward Boreas Pass. The ride follows an abandoned railroad grade, which once was the route of the Denver, South Park and Pacific Railroad. This fairly smooth dirt road climbs gradually through beautiful aspen groves, making it a superb fall ride. Pass Baker’s Tank, which stored water for railway use, at 3 miles. Continue climbing on the main road along the flank of Bald Mountain. At the pass, you’ll have incredible views from the Continental Divide. Perched near the road is the restored Boreas Pass Section House. From the pass, return as you came. The road actually continues another 11 miles down to the vast expanse of South Park and the small town of Como.
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