Commissioners: “We will continue to value, respect, and support all individuals as we serve the people of Boulder County.” Read full message.

Immigrant Resources, including a Know Your Rights Booklet, available on the Immigration Resources webpage.

Trail Closures, Notices, and Alerts

Trail Closures, Notices, and Alerts

Current Trail Closures

Trail/Property Description
Fourmile Link at Betasso Preserve Closed from Fourmile Canyon Dr. to the creek for maintenance. There is no access to Betasso Preserve from Fourmile Canyon Dr. The project is expected to be completed by June 13.
Kinglet Trail on Tolland Ranch Currently closed but will reopen this summer.
Boulder Canyon Trail The western end of the trail is closed due to the City of Boulder’s Chapman Drive Trailhead project. Learn More
Cradleboard Trail at Carolyn Holmberg Preserve at Rock Creek Farm Access to the Cradleboard Trail from the southern end of S. 104th St. is closed. Learn More
Lagerman Trail at Lagerman Agricultural Preserve The western section of the trail is closed until Sept. 1 to protect nesting birds.

Trail closures can also be seen on the interactive map.

Scheduled Closures

  • The Harney-Lastoka Trail will be closed for agricultural spraying on one day between May 1 and 21. The trail will be closed only on the day the spraying takes place.

Email and Text Alerts

Sign up to receive email and/or text alerts whenever trails open or close.

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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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