Colorado Trail Explorer1.8.0 - App Store

Discover and explore Colorado’s unique trail experiences with the Colorado Trail Explorer. Available for free, COTREX offers the most comprehensive trail map available for the state and is built atop data from over 230 trail managers.

View trails by allowed uses on the map, browse featured routes, download offline maps, record trips and notes in the field, complete challenges to earn badges, and share your experiences with the community. COTREX is your gateway into Colorado’s magnificent outdoors.

■ DISCOVER TRAILS & FEATURED ROUTES

- Browse or search to find trails and Feature Routes that match your activities or interests.
- Change activity type to dynamically filter trails on the map.

■ OFFLINE MAPS

- No cell coverage? No problem! Download maps ahead of time for a continuous experience that doesn’t depend on your network.
- COTREX offline maps are lightweight in size and easy to download.

■ RECORD TRIPS & FIELD NOTES

- Capture the details of your outdoor experiences by recording Trips.
- Go beyond simple photos by taking and classifying rich Field Notes along the way. Choose from 45,000+ classifications that include trail conditions, species, rocks and minerals, historic places, points of interest, and much more.
- Seamlessly sync activity recorded on your devices with the web.

■ COMPLETE CHALLENGES TO EARN BADGES

- By recording and classifying Field Notes, you can complete Challenges and earn Badges for your profile.

■ SHARE WITH THE COMMUNITY

- Inform and inspire the entire COTREX community by sharing your Trips and Field Notes publicly or submitting Trip Reports.
- View activity feeds for all users or just the ones you follow.
- By sharing your experiences, you also help to inform trail managers about current conditions on the ground.

■ ABOUT COTREX

The Colorado Trail Explorer endeavors to map every trail in the state of Colorado in support of the Colorado the Beautiful Initiative. COTREX connects people, trails, and technology by coordinating the efforts of federal, state, county, and local agencies to create a comprehensive repository of recreational trails for public use.

This project is led by Colorado Parks and Wildlife (CPW) and Department of Natural Resources, but is only made possible through partnerships with organizations at every level statewide. COTREX represents a seamless network of trails managed by over 230 land managers.

■ DISCLAIMERS

[Battery Life] We do everything we can to make the app low power when recording, but GPS is notorious for reducing battery life

Terms: https://trails.colorado.gov/terms
Privacy Policy: https://trails.colorado.gov/privacy

Version History COTREX now shows key public transit stops that provide access to trail networks 1.8.0 Oct 2 Stability Improvements 1.7.3 Mar 17 The map now shows restricted areas for snowmobiles when in snowmobile mode 1.7.2 02/04/2025 - New Avalanche Forecast Overlay
- Stability Improvements 1.7.1 12/02/2024 Stability improvements 1.6.2 10/01/2024 - Wildfires and Prescribed Burns are now on the map
- Stability Improvements 1.6.1 05/06/2024 - Fixed crash affecting devices using iOS 12 1.5.4 04/05/2022 - Stability Improvements 1.5.3 03/29/2022 - Stability Improvements
- Fixed bug affecting description editor 1.5.2 03/15/2022 - Re-added "Record a Trip" button to add menu 1.5.1 08/03/2021 - New Navigation Mode (a streamlined interface for when you are on the trail)
- New Trip Trimming Feature (crop your trips after recording if you recorded more than you intended to)
- Added scale bar
- Added indicators for your current coordinates & elevation
- Map can now can be rotated 1.5.0 07/09/2021 - Stability Improvements 1.4.7 05/06/2021 - Stability Improvements 1.4.6 04/27/2021 - Stability Improvements 1.4.5 04/20/2021 - Stability Improvements 1.4.4 02/08/2021 - Stability Improvements 1.4.3 10/20/2020 - Stability Improvements 1.4.1 07/28/2020 New Features:

- Closure & Alert Subscription Service
- Weather Forecast Links
- Custom Route GPX File Downloads
- GPS Direction Indicator
- Keep Screen On While App Active
- New Help Center System

Updates:

- Measure Tool Now Works Offline
- Coordinate Sharing Improvements
- Bug fixes and other minor improvements 1.4.0 07/27/2020 - Stability Improvements 1.3.6 05/13/2020 - Stability Improvements 1.3.3 04/06/2020 - Fixed crash that occurred for some users when zooming in to see new closures 1.3.2 04/05/2020 - Stability Improvements 1.3.1 04/04/2020 - Improved Trail Closure Notices
- Stability Improvements 1.3.0 04/03/2020 - Stability Improvements 1.2.3 10/12/2019 - Stability Improvements 1.2.2 08/31/2019