Boulder County Trails

The official GPS trail map for Boulder County Parks and Open Space. Let your iOS or Android device find you on the trail and show you your options.

Screenshots of Android Trails App

iOS Trails App

Screenshots of Android Trails App

Android Trails App


  • Trail Length
  • Trail Difficulty
  • Parking Locations
  • Allowed Uses (dogs, bikes and horses)
  • Locate Me (see where you are on the trail)
  • Trail Conditions (as reported on Twitter; requires internet connection)
  • Satellite Map (see the landscape in incredible photographic detail)


Zoom around the map before heading to your destination. This will cache and save the map so you can use it even when you are not connected to the internet.


  • Locate Me works best on devices with GPS
  • This application does not include other local agency trails such as City of Boulder or United States Forest Service trails

Free Download

iTunes Store button

For devices with iOS 7.0 or later

Google Play button

For Android devices

Looking for the original Trails App for older devices with iOS 5.1 or later? It is still available.