Boulder County

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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.

• Fuzzy Spirit

  1.27 miDirtDifficulty unknown

• Deer Ridge Trail

  1.26 miDifficulty unknown

• Sherwood

  1.26 miHiking

• Arkansas

  1.26 miDifficulty unknown

• Twin Sisters Peak Trail

  1.25 miDifficulty unknown

• Middle Saint Vrain Trail

  1.24 miGroundMountain hiking

• Sanitas Valley Trail

  1.23 miGravelHiking

• Dry Creek

  1.22 miGravelDifficulty unknown

• Betasso Link Trail

  1.21 miDirtDifficulty unknown

• Lichen Loop Trail

  1.21 miDirtDifficulty unknown

• Mount Sanitas Trail

  1.20 miGroundDifficulty unknown

• Inlet Trail

  1.20 miDirtDifficulty unknown

• Coney Non-Motorized Spur

  1.20 miGroundDifficulty unknown

• Gregory Canyon Trail

  1.19 miDirtDifficulty unknown

• Sleepy Lion Trail

  1.18 miGroundDifficulty unknown

• Sunshine Canyon Trail

  1.17 miGroundDifficulty unknown

• Elk Trickle

  1.17 miDifficulty unknown

• Shadow Canyon Trail

  1.16 miGroundDifficulty unknown

• Forsythe Canyon Trail

  1.16 miGroundDifficulty unknown

• Saddle Rock Trail

  1.16 miGroundDifficulty 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 Boundaries can be incomplete or out of date.