Boulder Open Space and Mountain Parks

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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 Open Space and Mountain Parks

Longest trails

Ordered by measured length. This is a simple fact, not a quality ranking.

• Fern Canyon Trail

  0.95 miGroundMountain hiking

• Dakota Ridge Trail

  0.93 miGroundMountain hiking

• South Boulder Creek West

  0.90 miGroundDifficulty unknown

• Shadow Canyon South Trail

  0.88 miGroundDifficulty unknown

• FlatIrons Vista North Trail

  0.87 miDirtDifficulty unknown

• Golden Meadow Trail

  0.83 miGroundDifficulty unknown

• Marshall Valley Trail

  0.82 miDirtDifficulty unknown

• Viewpoint Trail

  0.82 miGroundDifficulty unknown

• 1st/2nd Flatiron

  0.80 miGroundDifficulty unknown

• Old Kiln

  0.80 miGroundDifficulty unknown

• Royal Arch

  0.79 miGroundDifficulty unknown

• Tenderfoot

  0.75 miGroundDifficulty unknown

• Range View Trail

  0.74 miGroundDifficulty unknown

• Mallory Cave Trail

  0.73 miGroundDifficulty unknown

• Shanahan - North Fork Trail

  0.73 miGroundDifficulty unknown

• Four Pines Trail

  0.71 miDirtDifficulty unknown

• Shale Trail

  0.71 miCompactedDifficulty unknown

• Marshall Mesa

  0.70 miDirtDifficulty unknown

• Boy Scout Trail

  0.67 miGroundDifficulty unknown

• Sage Trail

  0.67 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 Open Space and Mountain Parks ↗ (link last checked 2026-10-17)

Source

© OpenStreetMap contributors (ODbL). Area boundary from OSM relation/9848005. Boundaries can be incomplete or out of date.