The Flatirons.

Open Space News and Updates

Trailhead and Trail Information

Open Space Closures

  • Visit our interactive trail map to view current closures across the open space system.
  • Access our closure webpage to learn about more current trail and trailhead closures.
  • View online maps to see current wildlife closure areas.
  • Community members can also receive updates on muddy trail closures by texting “OSMP” to 888-777 to sign up for text updates about muddy trail closures.

Open Space Rules and Regulations

News Across the City of Boulder