New Multi-Agency, Boulder Area 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!

OSMP Reminders

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.

Participating Agencies

Boulder County Trails App Partner Agencies

The application includes trails from 12 agencies:

  • 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

BAT App Screenshots