Stage 1 Fire Restrictions, effective Aug. 12, 2025, for unincorporated western Boulder County.

Visit the Boulder County Ballot Measures website for information about possible 2025 ballot measures.

Boulder County government offices closed Monday, Sept. 1, in observance of Labor Day.

Trail Closures, Notices, and Alerts

Trail Closures, Notices, and Alerts

Current Trail Closures

  • Lagerman Trail at Lagerman Agricultural Preserve
    The Lagerman Trail and trailhead are closed until Dec. 31 due to trailhead construction. The Open Sky Loop remains open. Learn More
  • Walden Ponds
    The Wally Toevs fishing pier at Walden Ponds Wildlife Habitat is closed until further notice due to structural issues. The pond remains open for fishing.
  • East Twin Lakes Trail
    Resurfacing of the East Twin Lakes Trail is underway and expected to take one to three weeks. Half of the trail will remain open at a time, with access to the West Lake from Twin Lakes Road maintained throughout the project. View the closure map.

Trail closures can also be seen on the interactive map.

Scheduled Closures and Alerts

  • Crews will resurface a section of the Overbrook Trail just north of Niwot High School from Sept. 2 to 4. Heavy equipment will be used. Please use caution in the area. View the construction map.
  • A section of the Meadowlark Trail at the Coalton Trailhead will be closed Sept. 3 through Oct. 31 for cattle grazing. View the closure map.

Email and Text Alerts

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Muddy Trails

Shortcutting around muddy trails greatly increases erosion and destroys vegetation. If a trail is reported to be in poor condition, consider using another trail.

Tips for Muddy Trails

  • Use trails early in the morning before it gets too muddy
  • Go through mud, not around it – trails take years to heal, so get muddy
  • Use a different trail if it is too muddy

A very muddy trail with text overlay that says: Tips for Muddy Trails: Use trails early in the morning before it gets too muddy - Go through the mud, not around it - Use a different trail if it is too muddy

Contact Us

Parks & Open Space

303-678-6200
8 a.m. to 4:30 p.m.
Monday-Friday

Office Location

5201 St. Vrain Road
Longmont, CO 80503
Map and Directions

Office Hours
8 a.m.-4:30 p.m.
Monday-Thursday
Friday by phone, email, or appointment only.

Parks are open sunrise to sunset

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