Heil/Hall Ranch loop — Lyons

Marshall Mesa loop via Dowdy Draw Trail — Boulder

Canyon Loop & Benjamin Loop – Betasso Preserve

Loop di Hall Ranch - Spazio aperto North Foothills

Marshall Mesa loop — Boulder

Anello di Marshall Mesa - Spazio aperto e parchi di montagna di Boulder

Walker Ranch Loop – Walker Ranch Park & Eldorado Canyon State Park

West Magnolia loop — Nederland

Erie Singletrack Dirt Jumps and Coal Creek Trail loop — Weld County

Heil/Hall Ranch loop — Lyons

South St. Vrain loops — Ward, Colorado

Limber Pine Trail to Homestead Meadows — Hermit Park Open Space

Overland Loop — Lyons