Colorado

Suggestions? Local tips? Tell us!


4,720 mi 7,596 km

Runs

5,335 mi 8,586 km

Trails
Gems
47 Gems

Easy Trails
774 Trails
Intermediate Trails
842 Trails
Hard Trails
181 Trails

Introduction to Outdoor Rock Climbing Class - Level 1: May 27 - Golden: North Table Mountain
Learn basic Climbing skills and technique including specialized equipment use, proper fit of specialized equipment, site safety, knot tying, belay technique, basic climbing technique. This course is designed for new climbers or gym trained climbers looking to transition to the outdoor experience. Details
Introduction to Map & Compass Class - Level 1: May 27 - Boulder: South Mesa
In this class you'll learn to read map contour lines and translate them to the actual terrain. With your compass we'll teach you about magnetic north, true north and declination. Then we'll put it all together to pinpoint your location and plan your route. Details
View All Adventures

REI Adventures

Botswana Adventure Safari - Okavango Delta
Livingstone, Zambia
Vietnam Cycling
Ho Chi Minh City, Vietnam

Area suggestions or local tips? Tell us!

Trail Run Project is built by runners like you. Share what you know about this area with the community.

Building Map
Loading Map Data
Map Settings
Featured Run
Trail
Featured Runs
Trails

Gems in Colorado - 47

Trail Run Project is built by runners like you. Add Your Gems!

Featured Runs in Colorado - 393

Trail Run Project is built by runners like you. Add Your Runs!

Trails in Colorado - 1406

Trail Run Project is built by runners like you. Add Your Trails!

2.2 mi 3.5 km
#1 Lion's Lair Trail
Boulder, CO
2.2 mi 3.5 km Boulder, CO
All Clear
Update
12 days ago
Manitou Springs, CO
1.1 mi 1.8 km Manitou Springs, CO
All Clear
Update
Dry
41 days ago
13 
Central City, CO
1.9 mi 3.1 km Central City, CO
Unknown
Update
Roxborough Park, CO
3.1 mi 5.0 km Roxborough Park, CO
All Clear
Update
Dry
71 days ago
13 
14.6 mi 23.6 km
#5 Big Dominguez Canyon
Palisade, CO
14.6 mi 23.6 km Palisade, CO
Unknown
Update
48.5 mi 78.0 km
#6 Gore Range Trail
Frisco, CO
48.5 mi 78.0 km Frisco, CO
Unknown
Update
4.5 mi 7.3 km
#7 Pawnee Pass Trail
Nederland, CO
4.5 mi 7.3 km Nederland, CO
Unknown
Update
10.1 mi 16.3 km
#8 Oh-Be-Joyful #835
Crested Butte, CO
10.1 mi 16.3 km Crested Butte, CO
Unknown
Update
Nederland, CO
6.6 mi 10.6 km Nederland, CO
Unknown
Update
Boulder, CO
1.4 mi 2.2 km Boulder, CO
Minor Issues
Update
Muddy
15 days ago
12 
6.3 mi 10.1 km
#11 Mesa Trail
Boulder, CO
6.3 mi 10.1 km Boulder, CO
All Clear
Update
21 days ago
1.1 mi 1.8 km
#12 Crater Lake Trail
Granby, CO
1.1 mi 1.8 km Granby, CO
Unknown
Update
13.3 mi 21.4 km
#13 CT - Segment 3
Pine, CO
13.3 mi 21.4 km Pine, CO
All Clear
Update
Dry, Fallen Trees - In great shape right now. Just one fallen tree over the trail.
64 days ago
15.0 mi 24.2 km
#14 Buchanan Pass Trail
Nederland, CO
15.0 mi 24.2 km Nederland, CO
Unknown
Update
12.5 mi 20.2 km
#15 Arapaho Pass Trail
Nederland, CO
12.5 mi 20.2 km Nederland, CO
Unknown
Update
Nederland, CO
7.9 mi 12.8 km Nederland, CO
Unknown
Update
Walden, CO
8.6 mi 13.9 km Walden, CO
Unknown
Update
Coal Creek, CO
2.3 mi 3.7 km Coal Creek, CO
All Clear
Update
Mostly Dry
96 days ago
1.1 mi 1.8 km
#19 Shadow Canyon
Boulder, CO
1.1 mi 1.8 km Boulder, CO
All Clear
Update
19 days ago
3.8 mi 6.1 km
#20 Mad Creek Trail
Steamboat Springs, CO
3.8 mi 6.1 km Steamboat Springs, CO
All Clear
Update
Dry - Trail is in great shape, great easy hike!
19 days ago

Photos of Colorado - 3769

Trail Run Project is built by runners like you. Add Your Photos!

Trail Run Project is part of the REI Co-op family,
where a life outdoors is a life well lived.

Shop REI Running