Unpaved
Trails whose mapped surface is dirt, gravel, ground or similar.
410 trails in Boulder County with this feature, longest first (trails under a quarter mile are hidden).
Isabell Glacier Trail
2.32 miGround80 ft gainMountain hikingMeadowlark Trail
2.31 miGravel185 ft gainDifficulty unknownPipeline Trail
2.31 miDirt759 ft gainMountain hikingStorm Gulch
2.29 miGround1,846 ft gainDemanding mountain hikingSlaughterhouse Gulch Road
2.29 miUnpaved1,232 ft gainDifficulty unknownFinch Lake Cutoff Trail
2.27 miDirt1,149 ft gainHikingBenjamin Trail Loop
2.26 miLoopDirt244 ft gainDifficulty unknownOh Danny Boy Loop
2.24 miLoopGround328 ft gainDifficulty unknownBear Canyon
2.22 miDirt32 ft gainDifficulty unknownWaldrop Trail
2.21 miGround118 ft gainDifficulty unknownNelson Loop
2.21 miLoopDirt324 ft gainDifficulty unknownOverland Loop Trail
2.20 miLoopDirt186 ft gainHikingHobbit
2.19 miDirt133 ft gainHikingSpring Brook Loop North Trail
2.19 miDirt183 ft gainDifficulty unknownButton Rock Mountain Loop
2.18 miLoopGround235 ft gainDifficulty unknownPlants and Animals
2.18 miDirt992 ft gainDifficulty unknownDoudy Draw Trail
2.18 miDirt10 ft gainDifficulty unknownNiwot Loop Trail
2.17 miFine gravel143 ft gainDifficulty unknownFlatIrons Vista South Trail
2.17 miGroundDifficulty unknownConey Lake Trail
2.15 miGround831 ft gainMountain hiking
Data © OpenStreetMap contributors (ODbL); elevation from USGS 3DEP. Features can be missing or out of date.