‘The Sluice’ in Floyd Hill, Colorado, drops 700 vertical feet over 1.3 miles. It gives the major Denver metro area easy access to a free downhill mountain bike trail for the first time.
The Colorado Mountain Bike Association (COMBA) held an opening celebration for a trail named “The Sluice” on Wednesday. Also known by the less lyrical name, “Segment 4,” the 1.3-mile, bike-only directional downhill trail is just 30 minutes from downtown Denver.
Built specifically for bikes on public lands in Clear Creek County, the trail is the first of its kind on Colorado’s Front Range, a booming area encompassing the foothills west of Denver.
The Sluice: Free Downhill Mountain Biking Near Denver
The Sluice has jumps, berms, drops, step-downs, step-ups, and technical rock lines to challenge experienced riders. Several optional alternative lines give riders more and less challenging route choices.

COMBA rated The Sluice’s main trail blue square/black diamond. The alternative lines vary in difficulty from black diamond to double black diamond. It drops 700 vertical feet with I-70, Colorado’s main mountain artery, as a backdrop.
“We want to introduce these concepts and the resulting experiences on the trails to the Front Range public to build support for implementation at other trail systems in nearby areas,” said Executive Director Gary Moore. “It is important to have this public support to enable land managers to make difficult, bold changes to their trails.”
A Downhill Trail Away From Resorts
Denver, Boulder, Fort Collins, Colorado Springs, and a slew of other small towns make up the Front Range Urban Corridor. The area’s population comprises nearly 5 million people, so the mountains near popular access points attract a lot of interest. Just half an hour from Denver, The Sluice will offer riders an alternative to nearby downhill resort riding at Winter Park.