Boulder County
County. Find your line here.
Trails736
Total length610 mi
Known loops19
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.
Pawnee-Toll Transverse
0.47 miMountain hikingFlatirons Loop Trail
0.47 miGroundDifficulty unknownLong Lake Connector Trail
0.47 miGroundDifficulty unknownWalden Ponds
0.47 miDifficulty unknownCMC Brainard Snowshoe trail
0.47 miGroundDifficulty unknownGlacier View Loop
0.47 miDifficulty unknownV8
0.47 miDirtDifficulty unknownBluestem Connector
0.47 miGroundDifficulty unknownShanahan - Mesa Trail
0.47 miGroundDifficulty unknownJosie Heath Trail
0.47 miUnpavedDifficulty unknownNiwot Loop Trail
0.47 miFine gravelDifficulty unknownLong Gulch Spur Road
0.46 miDifficulty unknownBridle Trail
0.46 miDifficulty unknownRed Rocks Spur Trail
0.46 miGroundDifficulty unknownCanyon Rim Trail
0.46 miDirtDifficulty unknownWillows Trail
0.46 miGravelDifficulty unknownDeadass
0.46 miDirtDifficulty unknownTungsten Spur Trail
0.46 miDifficulty unknownColorado Ave South Path
0.46 miConcreteDifficulty unknownHobbit 3.5
0.46 miDirtDifficulty 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 Boundaries can be incomplete or out of date.