Show/Hide

Important Updates:

The city has launched a beta to preview its new website and gather feedback. | More Info

Show/Hide

The City of Boulder welcomes your feedback. Use our Inquire Boulder customer service tool to tell us what’s on your mind.

  • OSMP Trails & Recreation
  • OSMP Visitor Info
  • OSMP Get Involved
  • OSMP Nature & Restoration
  • OSMP - About
  • OSMP Kids & Families
  • OSMP Plans & Reports
  • OSMP en Español

Boulder Area Trails App

Boulder Area Trails App Logo

COVID-19 Alerts

Boulder Star area on Flagstaff Mountain is closed

The Boulder Star area on Flagstaff Mountain IS CLOSED to prevent gatherings amid the COVID-19 pandemic and because of ecological and safety concerns in the area. Visitors entering the Boulder Star closure area on Flagstaff Mountain can face up to a $1,000 fine or 90 days in jail. Learn more. Follow these other important recreation guidelines:

  • Stay home if you are sick or exhibiting COVID-19 symptoms.
  • Only recreate with members of your own household. 
  • Always bring a face covering. Wear it when you can’t maintain 6 feet of physical distance. 
  • Keep the space in open space! Always stay at least 6 feet from non-household visitors.
  • Visit OSMPTrails.org to see current trail closures, historical data that shows areas of high and low open space use and trails that are wider than 6 feet. See when trails are busiest through our Visitation Data Explorer.
  • Protect first responders. Know your limits and don’t take unnecessary risks.

New Multi-Agency Trails App

The City of Boulder and 11 other agencies created a mobile application available for iOS and Android devices. The Boulder Area Trails app provides access to all trail information in and around Boulder County. The app is designed to enable users to find trails by use or type, plan routes by connecting local community trails, and link to the appropriate agency websites for more information. Before you head out, be sure to hit the app’s refresh button at the bottom left on a WiFi network to ensure you see all the trails! 

Download the Boulder Area Trails App

 

Logos of the participating agencies


City of Boulder and city Open Space and Mountain Parks (OSMP) regulations for dogs, bikes and horses may differ from other agencies and municipalities that maintain open space trails. Currently, all e-bikes are prohibited on OSMP trails but allowed on multi-use, paved paths within the City of Boulder. Please pre-plan your trip by reviewing city regulations to help our community members enjoy and protect their open spaces.

View more information on other OSMP rules and regulations, or call the department at 303-441-3440.

Participating Agencies

The application includes trails from 12 agencies including:

  • Boulder County
  • City and County of Broomfield
  • City of Boulder
  • City of Longmont
  • City of Lafayette
  • City of Louisville
  • Rocky Mountain National Park
  • Town of Superior
  • Town of Erie
  • Town of Lyons
  • Town of Nederland
  • USFS

The application was made possible by a grant through Colorado Parks and Wildlife and Great Outdoors Colorado.

More information can be found at TrailsApp.org.

Screenshots from the app showing closures, trails and filtering capabilities.