Boulder County
County. Find your line here.
Trails772
Total length605 mi
Known loops18
Counts are trails in our data whose start point lies inside this boundary. A loop is counted only where the source marks it as one.
Search trails near Boulder County
Longest trails
Ordered by measured length. This is a simple fact, not a quality ranking.
Longmont-to-Boulder (LOBO) Regional Trail
0.80 miFine gravelDifficulty unknownOld Kiln
0.80 miGroundDifficulty unknownRoyal Arch
0.79 miGroundDifficulty unknownBlue Bird Loop
0.79 miDirtHikingDevil's Thumb Bypass Trail
0.79 miDirtDifficulty unknownSpruce Gulch Single Track
0.78 miGroundDifficulty unknownMiller Rock Descent
0.78 miGroundDifficulty unknownWhoopp-Di-Doos
0.77 miGroundHikingKendall's Korner
0.77 miUnpavedDifficulty unknownSale Loop Road
0.76 miDifficulty unknownDeLonde Trail
0.76 miUnpavedHikingTungsten Loop
0.76 miDirtDifficulty unknownWonderland Lake Trail
0.76 miConcreteDifficulty unknownCougar Trail
0.75 miFine gravelDifficulty unknownLegion Park Trail
0.75 miDirtDifficulty unknownTenderfoot
0.75 miGroundDifficulty unknownBaughmans Gulley Single Track Trail
0.75 miGroundDifficulty unknownBaptiste Trail
0.74 miGroundDifficulty unknownRange View Trail
0.74 miGroundDifficulty unknownGreenbriar Connector Trail
0.73 miGroundDifficulty unknown
Official information
Parking, fees, permits, closures and rules are set by the managing agency and change often. We don't copy them here: check the official page before you go. Official page for Boulder County ↗ (link last checked 2026-10-17)
Source
© OpenStreetMap contributors (ODbL). Area boundary from OSM relation/1411337. Boundaries can be incomplete or out of date.