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Colorado Trail Explorer icon

Colorado Trail Explorer

Colorado's Official Trail Map
244 Ratings
4.3
★★★★
Age Rating
4+
Years
Language
EN
Size
142
MB

Information

Apple ID1435737776
Bundle IDcom.naturalatlas.ios.cotrex
SellerSeller
Min iOS13.4
Min macOS11.0
Device familiesiphone, ipad, ipod
Released2018-10-30
Copyright© Colorado Parks and Wildlife
Privacy policyLink ↗

Preview 2 platforms

iPhone 6 images

iPhone screenshot
iPhone screenshot
iPhone screenshot
iPhone screenshot
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iPad 1 image

iPad screenshot

What’s New Version 1.7.3

Stability Improvements

Description

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

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 25 versions

Build 880775633v1.7.32026-03-17 22:26:24
Stability Improvements
Build 872146048v1.7.22025-02-04 17:14:12
The map now shows restricted areas for snowmobiles when in snowmobile mode
Build 870440518v1.7.12024-12-02 17:26:10
- New Avalanche Forecast Overlay - Stability Improvements
Build 869392882v1.6.22024-10-01 10:12:22
Stability improvements
Build 865719414v1.6.12024-05-06 22:07:50
- Wildfires and Prescribed Burns are now on the map - Stability Improvements
Build 848121757v1.5.42022-04-05 01:25:43
- Fixed crash affecting devices using iOS 12
Build 847981337v1.5.32022-03-29 15:09:07
- Stability Improvements
Build 847704531v1.5.22022-03-15 16:30:12
- Stability Improvements - Fixed bug affecting description editor
Build 843381050v1.5.12021-08-03 20:59:27
- Re-added "Record a Trip" button to add menu
Build 843011266v1.5.02021-07-09 16:49:02
- 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
Build 842065017v1.4.72021-05-06 15:38:08
- Stability Improvements
Build 841852146v1.4.62021-04-27 12:32:57
- Stability Improvements
Build 841181928v1.4.52021-04-20 19:48:37
- Stability Improvements
Build 840287830v1.4.42021-02-08 06:00:51
- Stability Improvements
Build 838289102v1.4.32020-10-20 21:02:30
- Stability Improvements
Build 837032641v1.4.12020-07-28 19:05:59
- Stability Improvements
Build 837016323v1.4.02020-07-27 19:24:57
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
Build 835911132v1.3.62020-05-13 07:18:19
- Stability Improvements
Build 835418259v1.3.32020-04-06 10:01:55
- Stability Improvements
Build 835417713v1.3.22020-04-05 23:30:52
- Fixed crash that occurred for some users when zooming in to see new closures
Build 835402921v1.3.12020-04-04 10:57:49
- Stability Improvements
Build 835372088v1.3.02020-04-03 07:05:21
- Improved Trail Closure Notices - Stability Improvements
Build 833136840v1.2.32019-10-12 00:11:16
- Stability Improvements
Build 832596850v1.2.22019-08-31 15:50:42
- Stability Improvements
Build 832582583v1.2.12019-08-30 22:03:04
- Stability Improvements

No pricing data captured yet — comparisons appear once the app has paid storefronts or in-app purchases.

Availability 175 of 175 storefronts

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Reviews 30 reviews · US

★★★★
Great app, but some trails missing?
Really useful app and in many ways superior to AllTrails. One thing I find curious though is there are many trails that seem to be missing. For instance, the trail to the top of South Arapahoe Peak isn’t here. The keyhole route up Longs Peak is likewise MIA. Not sure why the omissions, but I love the app otherwise.
2drinks2026-06-06
★★★★★
So Helpful on the Trail!
This app is your best friend in the backcountry.
#PeteB2026-05-31
★★★★★
Meh
I wonder why they thought people would need a special separate app for the same information that is in the major trail maps out there making this just a waste of data storage. Three stars for a nice try.
Stuff n’ junk2026-05-26
★★★★★
THE CO Trails App
As the official app for trails in CO, what more could you ask for. Real time updates to trail closures and regular updates coming straight from the source.
Martinotucci2026-04-28
★★★★
Password
Won’t reset password. I get the email but it does not lead you to password reset. App works good just don’t loose your password
Csaw1952025-08-16
★★★★
Good, but disappointed with developer
This is a good app, and a great alternative for Colorado residents who don’t want to pay a subscription for a commercial app. I still prefer AllTrails for the kinds of hikes that I do, but still cross-reference with COTrEx from time to time. Both apps have both false negatives and false positives in terms of trails. It is a bit disappointing for a CPW-sanctioned app to be missing trails that clearly exist in the real world (and aren’t just social trails), and to generally be outdated. My biggest disappointment is the slow turnaround time on bug-fixing, all too common in software development t
Valana2025-06-02
★★★★
Compass heading is way to sensitive to pinch zoom
Title. I often finding myself spinning my map in circles rather than zooming in out. Slightly annoying when I have the orientation how I want it and I pinch/pull my fingers in a slight enough way to rotate the map.
-Schubby-2025-04-26
★★★★★
Needs one-handed zooming
Pinch-to-zoom is difficult without using two hands or setting the phone on a table or some other surface. Almost every other map app has a single-finger way to zoom in or out. For example, in Apple Maps, tapping twice, and without lifting your finger from the second tap, allows you to zoom in by dragging your finger up and zoom out by dragging your finger down. Google Maps, GaiaGPS and AllTrails all have similar functionality. Would love to see it come to this app.
Bostn2025-02-17
★★★★
Good trustworthy app but
Satellite layer is at least 4 years old. Needs updated.
Retired2Hunt2024-12-04
★★★★★
Best app for exploring Colorado, some UX issues
Please please please reimplement one handed zooming. Literally every other map app under the sun lets you zoom with one hand/one finger. This causes such headache for me. I am perpetually trying to tap and slide to zoom (due to muscle memory since Apple Maps, AllTrails, Google Maps, Trails Off-road all working this way), but en up selecting random things and messing up my navigation.
Repo22024-10-01
★★★★
Trip Trim function error message
Love this app. If i try to trim my bike recording by first tapping Edit, then sliding the slider, then Save. Then I receive error message “Error TypeError: Undefined is not a function. OK” Thanks for your help
MTBers2024-09-16
★★★★★
My favorite trail app
This is such a great app -- and we are so fortunate to have it here in Colorado! The ability to build out custom routes using all of the existing segments, and having the route snap to the existing trails is stellar. And the option to loop or do a one-tap out and back option? What a quality of life boost. Being able to follow an area to receive updates on closures or public notices is also great, and the offline functionality? Dope. I forget to use the field notes portion when im on runs, but it seems like a great way for trail managers to get crowdsourced realtime data on trail issues or a
Raptorfromspace2024-08-25
★★★★★
No Apple Watch Compatability
I really really love this app, I use it every time I dirt bike. However, the inability to use this app on my Apple Watch is highly inconvenient. I ride hard enduro, which means I’m unable to mount my phone to my dirt bike handle bars. Having to stop at each fork in the trail/road is such a hassle. I’m probably alone on this, but, I’d much rather glance down at my watch rather than pull my phone out. If the devs made this compatible with the watch I’d pay money for it! Cheers!
Lance ArmHammer2024-07-17
★★★★★
Wildly Inaccurate
This app needs it mapping updated terribly. Hiking trails that have been opened or closed in the last five years have not been updated. Forest service roads from the last twenty years are not updated. Some areas have been sold to private citizens so using this app you will find yourself trespassing or having to turn around without completing a trail. Seasonal closures are also wildly inaccurate. If this is a state ran app then this is why the government needs less control. Some features are awesome like planning your route, elevation change and more accurate distances than AllTrails. Yet the a
GetLost982024-04-14
★★★★★
Best app by far
I’ve tried them all, this is the clear winner and it’s free. I wish other states would add in this this but thankfully 99 percent of my hiking is in Colorado. Could the developers add game unit, private land, and previous wild fire layers? That is the only thing this app is missing but even without this, this is the best app I’ve ever used and I’ve paid for most the others. Good work devs!
blaskoa2023-11-27
★★★★★
Please make a Garmin friendly app!
I would really like to use the new Garmin watches for a GPS on OHV and single track trails for a quick glance rather than stopping to pull out a phone. Only way this app could get better in my opinion.
BYapes2023-11-11
★★★★★
Quirky
I had high hopes for this app, but unfortunately it's useless. It can't receive a GPS signal (and yes, my phone has buit-in GPS). It just kept saying it's unable to lock on to GPS because it doesn't have access to location services, yet there is no option anywhere I can find in the app or on the iPhone's settings to grant said access. The app doesn't appear in the list of apps in the iPhone "Privacy" settings, so there's no way to grant access there, and there are no options within the settings of the app itself to grant access. Once I deleted and reinstalled the app, thugh, it properly regist
COSSnowbiker2023-10-26
★★★★★
For me, a necessity
I love this app. Lets you make notes about what you encounter, lets you see national forest/park boundaries, record your hikes/drives/etc… I use it all the time and like that the info is “from the horse’s mouth” (from the state itself, not from a 3rd party). Just super well done. I also appreciate the recently added feature of being able to trim your recordings in the event you forget to stop it before you drive back from a hike.
GsCO7192023-09-20
★★★★★
Great app
This is such a good app and better than paid ones like Rever for motorcycle riding, in a perfect world it will soon work with apple carplay
Paulozawesome2023-09-06
★★★★★
Very useful
This is been a great app. It save me a few times when I was heading the wrong direction of a trail. Haven’t had any problems. Would love it. If it was, apple watch compatible just got one and this map definitely needs to be on the Apple watch, especially out dirt biking. It would be amazing to be able to just look down at my wrist instead of having to pull out my phone or use the phone mount. Also would be really cool if you could sync up the group of people you’re riding with so you could see each other on the map. I understand that might require everybody to have cell phone service but cou
Masterk812023-08-13
★★★★★
Slick interface, but lacking in up to date info
This app is being promoted as a better solution than crowd-sourced options but it really isn’t. Popular hikes have no information and some shows trails starting from closed/private land trailheads that are likely to get your car towed or at least ticketed. So it is not more accurate than crowd sourced, and it has less information. Only a few “featured hikes” have detailed information and photos. I have not actually found a user trip report yet, so it does not appear that they are getting much help, and they don’t even have all the state parks as featured. So meh.
Marinasnow2023-07-27
★★★★★
Love this app
I use it all the time when hiking, makes way finding trails with multiple intersections. Used it a lot when off-roading as well since you can download the map for offline use. Very handy and a must have for any Coloradian. Can’t seem to get my password reset though…
Kpearsond2023-05-25
★★★★★
Ok but mileage tracking seems off
App is okay but Trail recording distance seems off. Distance reported by this app is more than reported in AllTrails and the Apple Watch activity tracking which match with each other in comparison.
jmstacey2023-03-31
★★★★★
Wish every state had one!
I love this thing. So, so much better than having to use multiple forest service maps, BLM, etc. to find and plan a great hike. Also adore how it shows trail systems operated by smaller agencies — counties, towns, state parks, etc. — that you would miss by consulting only the federal agency maps. It’s a real breakthrough to have all of these things in one place. It makes me sad when I am traveling outside Colorado and have to fall back on Alltrails. Ugh. The maps on Alltrails are OK but since it’s all crowdsourced and the underlying maps arent as good or inclusive, it really constricts your o
stephanieinNJ2023-03-13
★★★★
Why did elevation gain get removed?
I used to be able to use the measure tool to make a route and get the distance and elevation gain. It shows the elevation profile but not the elevation gain. I bet more people care about total elevation gain over elevation profile. Please bring back elevation gain in the measure tool.
jfjfirkeneb2023-02-05
★★★★★
Great App for Outdoor CO Activities
Impressive app from the state of CO. It’s been my go to for Off-roaming, Mtn biking, and hiking. Highly recommend
Doubleduecr2022-07-28
★★★★
Great trail map for Colorado
This id a wonderful, free app. Always use it on Colorado trails. Even with no cell service it works great. I just wish it would work in landscape mode, too, on my phone.
I_tried_it2022-07-08
★★★★
Great idea horrible execution
The app has tons of information but it is hard to navigate and work the app features and filters.
★★★★★
Great for Colorado Trails!
Really like using COTREX to find new trails to snowshoe, hike, off-road, mountain bike etc. Love that offline maps can be saved without a subscription. For off-roading, it would be really nice to have Apple CarPlay/Android Auto integration!
Tommyp1285922022-06-10
★★★★★
Good app but can’t make account
I try to make an account, it asks for a username, so I put one in and it says I need an email, I try to put my email in but it’s apparently too many characters… ?

Change log 29 changes · US

releaseNotes updated
Stability Improvements
description updated
Discover and explore Colorado’s unique trail experiences with the Colorado Trail Explorer. Available for free, COTREX offers the most comprehensive trail map av
subtitle updated
Colorado's Official Trail Map
name updated
Colorado Trail Explorer
Version 1.7.3 released
Stability Improvements
Version 1.7.2 released
The map now shows restricted areas for snowmobiles when in snowmobile mode
Version 1.7.1 released
- New Avalanche Forecast Overlay - Stability Improvements
Version 1.6.2 released
Stability improvements
Version 1.6.1 released
- Wildfires and Prescribed Burns are now on the map - Stability Improvements
Version 1.5.4 released
- Fixed crash affecting devices using iOS 12
Version 1.5.3 released
- Stability Improvements
Version 1.5.2 released
- Stability Improvements - Fixed bug affecting description editor
Version 1.5.1 released
- Re-added "Record a Trip" button to add menu
Version 1.5.0 released
- 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 coor
Version 1.4.7 released
- Stability Improvements
Version 1.4.6 released
- Stability Improvements
Version 1.4.5 released
- Stability Improvements
Version 1.4.4 released
- Stability Improvements
Version 1.4.3 released
- Stability Improvements
Version 1.4.1 released
- Stability Improvements
Version 1.4.0 released
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 Offlin
Version 1.3.6 released
- Stability Improvements
Version 1.3.3 released
- Stability Improvements
Version 1.3.2 released
- Fixed crash that occurred for some users when zooming in to see new closures
Version 1.3.1 released
- Stability Improvements
Version 1.3.0 released
- Improved Trail Closure Notices - Stability Improvements
Version 1.2.3 released
- Stability Improvements
Version 1.2.2 released
- Stability Improvements
Version 1.2.1 released
- Stability Improvements
expanded screenshot