Chuck White on October 6, 2024
Gravel Segment
From Geer Canyon Dr, Boulder to Old St Vrain Rd, Lyons, Boulder County, Colorado
Starts at Heil Valley Ranch parking off Left Hand Canyon Rd. Haven’t ridden it yet but plan in a few days. Lots of mountain bike trails but this route should stay on the dirt road.
Distance
Elevation
9.67 miles
5,377 ft minimum
6,775 ft maximum
1,247 ft gain
1,572 ft loss

100% gravel

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