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.

• Gillespie Gulch

  1.53 miUnpavedDifficulty unknown

• E.M. Greenman Trail

  1.52 miGroundDifficulty unknown

• Legion Park Trail out and back

  1.51 miDifficulty unknown

• Hidden Valley

  1.50 miGroundDifficulty unknown

• The Righteous Path

  1.50 miDifficulty unknown

• Vesper Trail

  1.50 miUnpavedDifficulty unknown

• David Lee Roth

  1.48 miUnpavedDifficulty unknown

• Fowler Trail

  1.47 miGroundDifficulty unknown

• Wapiti Trail

  1.47 miGroundMountain hiking

• Neverland

  1.47 miDirtDifficulty unknown

• Hallie A Tungsten Mine out and back

  1.46 miDifficulty unknown

• Gordon Gulch

  1.46 miDirtDifficulty unknown

• Legend Ridge Loop

  1.46 miLoopFine gravelDifficulty unknown

• RattleSnake Gulch Trail

  1.45 miDirtDifficulty unknown

• Lost Lake Trail out and back

  1.45 miDifficulty unknown

• Aspen Alley Trail

  1.45 miDirtDifficulty unknown

• 4th of July Road out and back

  1.44 miDifficulty unknown

• Big Lizard + V8 out and back

  1.44 miDifficulty unknown

• Long Canyon Trail

  1.43 miGroundDifficulty unknown

• Eagle Trail

  1.43 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 Boundaries can be incomplete or out of date.