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).
Viewpoint Trail
0.82 miGround510 ft climb one way (downhill as drawn)Difficulty unknownSouth Saint Vrain Trail
0.82 miGround20 ft gainMountain hikingCook Mountain Summit (unmaintained)
0.81 miGround525 ft climb one way (uphill as drawn)Mountain hikingSugar Magnolia
0.81 miDirt206 ft climb one way (downhill as drawn)Difficulty unknownFourmile Link Trail
0.80 miDirt150 ft gainDifficulty unknownIBM Connector Trail
0.80 miFine gravel31 ft gainDifficulty unknown1st/2nd Flatiron
0.80 miGround898 ft climb one way (downhill as drawn)Difficulty unknownLongmont-to-Boulder (LOBO) Regional Trail
0.80 miFine gravel10 ft gainDifficulty unknownOld Kiln
0.80 miGround113 ft gainDifficulty unknownRoyal Arch
0.79 miGround119 ft gainDifficulty unknownBlue Bird Loop
0.79 miDirt33 ft gainHikingDevil's Thumb Bypass Trail
0.79 miDirt151 ft climb one way (downhill as drawn)Difficulty unknownSpruce Gulch Single Track
0.78 miGround45 ft gainDifficulty unknownMiller Rock Descent
0.78 miGround436 ft climb one way (uphill as drawn)Difficulty unknownWhoopp-Di-Doos
0.77 miGround44 ft gainHikingKendall's Korner
0.77 miUnpaved312 ft climb one way (downhill as drawn)Difficulty unknownDeLonde Trail
0.76 miUnpaved90 ft gainHikingTungsten Loop
0.76 miDirt63 ft gainDifficulty unknownCougar Trail
0.75 miFine gravel0 ft gainDifficulty unknownLegion Park Trail
0.75 miDirt56 ft gainDifficulty unknown
Data © OpenStreetMap contributors (ODbL); elevation from USGS 3DEP. Features can be missing or out of date.