Colorado Trail Explorer Android App

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About Colorado Trail Explorer

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

Colorado Trail Explorer details

Colorado Trail Explorer is a free Maps & Navigation app for Android with 100,000+ installs on Google Play and a 4.3/5 average rating from 312 ratings. It was released on October 29, 2018 and last updated on January 30, 2025. It's developed by State of Colorado - Governor's Office of IT. It requires Android 6.0 or later.

Category: Maps & Navigation
Rating: 4.3 / 5 (312 ratings)
Installs: 100,000+
Price: Free
In-app purchases: No
Ads: No ads
Current version: 1.7.2
Requires Android: 6.0
Content rating: Everyone
Released: October 29, 2018
Last updated: January 30, 2025
Developer: State of Colorado - Governor's Office of IT

What’s new in Colorado Trail Explorer

The map now shows restricted areas for snowmobiles when in snowmobile mode

Version 1.7.2 · Updated January 30, 2025

Alternatives to Colorado Trail Explorer

Looking for apps like Colorado Trail Explorer? Here are 6 similar Android apps on Google Play. The highest rated is Freetrail: Trail Running App (4.8/5), and all 6 are free to download.

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Colorado Trail Explorer vs. alternatives
App	Rating	Price	Installs	Last updated
Colorado Trail Explorer	4.3 / 5	Free	100,000+	Jan 30, 2025
Freetrail: Trail Running App	4.8 / 5	Free	100+	–
Overland Bound One: Map & GPS	3.8 / 5	Free	5,000+	–
ISDO Scuba Dive	–	Free	1,000+	–
OuterSpatial: Get Outside	3.4 / 5	Free	100,000+	Sep 13, 2026
RaceTrac	3.7 / 5	Free	500,000+	–
FoodSwitch	1.9 / 5	Free	50,000+	Jul 21, 2026

Frequently Asked Questions (FAQ)

What is the Colorado Trail Explorer?

The Colorado Trail Explorer (COTREX) is a platform that allows users to discover and explore Colorado's trail experiences. It provides a comprehensive trail map for the state and is built on data from over 230 trail managers.

What features does COTREX offer?

COTREX offers features such as viewing trails by allowed uses on the map, browsing featured routes, downloading offline maps, recording trips and field notes, completing challenges to earn badges, and sharing experiences with the community.

How can I find trails and featured routes on COTREX?

You can browse or search for trails and featured routes that match your activities or interests on COTREX. You can also dynamically filter trails on the map by changing the activity type.

Can I use COTREX offline?

Yes, you can download maps ahead of time and use them offline without depending on your network or cell coverage.

How can I record trips and field notes on COTREX?

You can capture the details of your outdoor experiences by recording trips on COTREX. Additionally, you can take and classify rich field notes along the way, choosing from over 45,000+ classifications that include trail conditions, species, rocks and minerals, historic places, points of interest, and much more. The activity recorded on your devices seamlessly syncs with the web.

How can I earn badges on COTREX?

By recording and classifying field notes on COTREX, you can complete challenges and earn badges for your profile.

How can I share my experiences with the COTREX community?

You can inform and inspire the entire COTREX community by sharing your trips and field notes publicly or by submitting trip reports. You can also 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.

What is the goal of the Colorado Trail Explorer project?

The goal of the Colorado Trail Explorer project is to map every trail in the state of Colorado in support of the Colorado the Beautiful Initiative. It aims to connect people, trails, and technology by coordinating the efforts of various agencies to create a comprehensive repository of recreational trails for public use.

Who leads the Colorado Trail Explorer project?

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

Are there any disclaimers for using COTREX?

One disclaimer is regarding battery life. While the app is designed to be low power when recording, using GPS can reduce battery life. Additionally, the app has terms of use and a privacy policy that can be found at the following links:

I would have been lost in arapaho national forest if not for this app. I was trying to decide whether to push through or turn around on a trail, and none of my other apps were working. I downloaded this one ...