From the Promoter:
The one and only winter cycling festival that brings Boulder’s best mixed terrain riding to cyclists of all levels. From quiet country roads to carving canyons, we’ve got the distance and the terrain you’re after.
Choose the 50km option for a scenic spin along the paved and gravel farm roads on the east side of the Foothills Highway.
Choose the (roughly) 100k course to tackle some extra miles and climbs through Boulder County’s foothills.