Boreas Pass features is a dirt road that climbs up to an elevation of 11,482 feet, and provides stunning views of Breckenridge below. The trail is about 15 miles long total winds up into the beautiful Rocky Mountains.<br />
Beware of bike traffic as well as car traffic, as this is still a used road.
from Main st in Breckenridge, Boreas Pass rd is on the south end of town, I think theres a light at the intersection of Main and Boreas Pass rd. go east on Boreas Pass rd, not far you'll see a parking lot on the right, good place to start.
http://www.tripleblaze.com/trail.php?c=3&i=1435