Rainbow to Columbine Lake Out and Back

About

The Rainbow to Columbine Lake Out and Back is a 17.8-mile mountain biking route starting in Silverton, Colorado. The trail reaches an elevation of 9,311 feet and is classified as difficult. Riders typically complete the ride in about six hours between April and October, contingent on snow conditions. Parking is available at the trailhead. The route begins in Silverton by connecting to Rainbow Trail, which offers a gradual climb. After crossing the highway and Chattanooga Road 820, riders enter Columbine Lake Trail. The initial two miles are steep and require significant hiking with the bike. The terrain flattens near the summit, leading to Columbine Lake, which sits at 12,700 feet. The final mile before the lake includes one exposed section. The descent features steep, fast switchbacks. A recent modification near the bottom third of the trail provides an alternative line with machine-built berms, rollers, and wood features. The trail is shared with hikers, who are the predominant users. Riders should yield to uphill traffic and ride through mud rather than bypassing it on singletrack sections. The area is pet friendly.