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.
Spring Gulch #2 Greenway
0.31 miConcreteDifficulty unknownBig Lizard
0.31 miDirtDifficulty unknownIndian Jones and the Temple of Doom
0.31 miDirtDifficulty unknownArapaho Glacier Connector Trail
0.31 miGroundDifficulty unknownFlatIrons Vista Trail
0.31 miDirtDifficulty unknownDale's Trail
0.31 miDirtDifficulty unknownShort Stack Trail
0.31 miGroundDifficulty unknownCottonwood Singletrack
0.31 miDirtDifficulty unknownCampsites Trail
0.31 miGroundDifficulty unknownReboot
0.30 miGroundDifficulty unknownHill Climb Road
0.30 miUnpavedDifficulty unknownCarwash
0.30 miGroundDifficulty unknownEast Boulder Trail
0.30 miAsphaltDifficulty unknownOld Baldy
0.30 miGroundMountain hikingPowerline Trail
0.30 miPavedDifficulty unknownSaddle Rock
0.29 miGroundDifficulty unknownComo Creek
0.29 miDirtDifficulty unknownWillows Trail
0.29 miConcreteDifficulty unknownWoods Quarry Trail
0.29 miGroundDifficulty unknownChuck's Night Out
0.29 miDifficulty 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 Boundaries can be incomplete or out of date.