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Open Space & Mountain Parks

South Mesa in fall

Trails & Trailheads

Aspen trees in autumn

Plan Your Visit

OSMP Trail Map Preview

OSMP Trail Map

Contact

Name
OSMP
Phone
303-441-3440
Address

2520 55th Street
Boulder, CO 80301
United States

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OSMP Projects

Larger projects are highlighted below. Shorter-term trail and trailhead maintenance projects are found on the OSMP Closures page.

  • Open Space & Mountain Parks
  • About
  • Upcoming Events
  • Projects
  • Services & Programs
  • Anemone Trail view

    Anemone Hill Trail Construction

  • Bear Canyon Trail view

    Bear Canyon Reroute

  • Picture of the Flatirons.

    Boulder City Charter and Open Space

  • West section of Cottontail Trail

    Cottontail Trail Project

  • View from South Boulder Creek Trail

    Gebhard Integrated Site Project

  • Blue Flax along East Boulder - Gunbarrel Trail

    Gunbarrel Hill Integrated Site Project

  • Chautauqua Trail - Senderos De Boulder

    OSMP Master Plan Implementation

  • Royal Arch in the Winter

    Royal Arch Trail Project

  • A picture of The Peoples' Crossing trailhead sign

    The Peoples' Crossing

  • Wonderland Lake

    Wonderland Lake Integrated Site Project

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