Trail running

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161 trails in Boulder County with this feature, longest first (trails under a quarter mile are hidden).

• Mount Audubon Trail

  2.13 miGround1,818 ft gainDifficulty unknown

• Lion Lake Trail

  2.10 miGround1,087 ft gainDifficulty unknown

• Wapiti Trail

  2.08 miDirt526 ft gainDifficulty unknown

• Cony Lake Trail

  2.07 miGround980 ft gainMountain hiking

• Guinn Mountain Trail

  2.05 miDirt1,316 ft gainMountain hiking

• Managers

  2.04 miDirt81 ft gainDifficulty unknown

• South Saint Vrain Trail

  2.00 miDirt636 ft gainDifficulty unknown

• South Saint Vrain

  1.93 miDirt540 ft gainDifficulty unknown

• Ouzel Lake Trail

  1.91 miUnpaved600 ft gainDifficulty unknown

• Green Mountain West Ridge Trail

  1.90 miGround137 ft gainDifficulty unknown

• Shanahan - South Fork Trail

  1.82 miGround35 ft gainDifficulty unknown

• Mayhoffer Trail

  1.80 miGravel94 ft gainDifficulty unknown

• Hobbit

  1.80 miDirt255 ft gainHiking

• Hicks Gulch

  1.80 miDirt104 ft gainDifficulty unknown

• Lower Big Bluestem Trail

  1.79 miGround377 ft gainDifficulty unknown

• Bluebird Lake Trail

  1.78 miGround1,051 ft gainDifficulty unknown

• Hogback Ridge Trail

  1.76 miUnpaved640 ft gainHiking

• Hoh'onookee Koh'owu Trail

  1.73 miDirt441 ft gainDifficulty unknown

• Bear Peak West Ridge Trail

  1.72 miGround1,232 ft gainDifficulty unknown

• Saint Vrain Mountain Trail

  1.71 miGround1,324 ft gainHiking

Data © OpenStreetMap contributors (ODbL); elevation from USGS 3DEP. Features can be missing or out of date.