Best Trail Running in Colorado

This list represents the most popular trail running in Colorado. Use this list to plan your next Colorado trail running trip. Select a state and/or activity below to find even more top trails.

  • #1 Royal Arch Trail

    12 Reviews

    Boulder County, CO

    Royal Arch Trail is a hiking trail in Boulder County, Colorado. It is 0.9 miles long and begins at 6,090 feet altitude. Traveling the entire trail is 1.9 miles with a total elevation gain of ...
    •  0.9 miles

    Royal Arch Trail is a hiking trail in Boulder County, Colorado. It is 0.9 miles long and begins at 6,090 feet altitude. Traveling ...

  • #2 Lost Lake Trail

    10 Reviews

    Roosevelt National Forest, CO

    Lost Lake Trail is a hiking trail in Boulder County, Colorado. It is within Roosevelt National Forest. It is 0.7 miles long and begins at 9,620 feet altitude. Traveling the entire trail is 1.5 ...
    •  0.7 miles

    Lost Lake Trail is a hiking trail in Boulder County, Colorado. It is within Roosevelt National Forest. It is 0.7 miles long ...

  • #3 Booth Lake Trail

    16 Reviews

    Eagles Nest Wilderness Area, CO

    Booth Lake Trail is a hiking trail in Eagle County, Colorado. It is within White River National Forest and Eagles Nest Wilderness Area. It is two miles long and begins at 8,439 feet altitude. ...
    •  2.0 miles

    Booth Lake Trail is a hiking trail in Eagle County, Colorado. It is within White River National Forest and Eagles Nest Wilderness ...

  • #4 Barr Lake Trail

    14 Reviews

    Adams County, CO

    Barr Lake Trail is a hiking, biking, and horse trail in Adams County, Colorado. It is 7.5 miles long and begins at 5,106 feet altitude. Traveling the entire trail is 15.0 miles with a total elevation ...
    •  7.5 miles

    Barr Lake Trail is a hiking, biking, and horse trail in Adams County, Colorado. It is 7.5 miles long and begins at 5,106 ...

  • #5 Herman Gulch Trail

    8 Reviews

    Arapaho National Forest, CO

    Herman Gulch Trail is a hiking trail in Clear Creek County, Colorado. It is within Arapaho National Forest. It is 3.2 miles long and begins at 10,299 feet altitude. Traveling the entire trail ...
    •  3.2 miles

    Herman Gulch Trail is a hiking trail in Clear Creek County, Colorado. It is within Arapaho National Forest. It is 3.2 miles ...

  • #6 Gem Lake Trail

    12 Reviews

    Rocky Mountain National Park, CO

    Gem Lake Trail is a hiking and horse trail in Larimer County, Colorado. It is within Rocky Mountain National Park. It is 4.2 miles long and begins at 7,856 feet altitude. Traveling the entire ...
    •  4.2 miles

    Gem Lake Trail is a hiking and horse trail in Larimer County, Colorado. It is within Rocky Mountain National Park. It is ...

  • #7 Grays Peak Trail

    5 Reviews

    Arapaho National Forest, CO

    Grays Peak Trail is a hiking and biking trail in Clear Creek County, Colorado. It is within Arapaho National Forest. It is 3.6 miles long and begins at 11,244 feet altitude. Traveling the entire ...
    •  3.6 miles

    Grays Peak Trail is a hiking and biking trail in Clear Creek County, Colorado. It is within Arapaho National Forest. It is ...

  • #8 High Line Canal

    1 Reviews

    Littleton, CO

    Despite its considerable length, I have rated this trail as "beginner," due its nonexistent elevation changes, easy running surface, and the ability to turn around at any point to return to your ...
    •  5 to 6 hours
    •  28.6 miles
    •  Guide

    Despite its considerable length, I have rated this trail as "beginner," due its nonexistent elevation changes, easy running ...

  • #9 Bear Lake Trail

    8 Reviews

    Rocky Mountain National Park, CO

    Bear Lake Trail is a hiking trail in Larimer County, Colorado. It is within Rocky Mountain National Park. It is 0.6 miles long and begins at 9,454 feet altitude. Traveling the entire trail is ...
    •  0.6 miles

    Bear Lake Trail is a hiking trail in Larimer County, Colorado. It is within Rocky Mountain National Park. It is 0.6 miles ...

  • #10 Mt. Cutler Trail

    3 Reviews

    Manitou Springs, CO

    Barr Trail climbs 13 miles to the summit of Pikes Peak, but this great day hike follows the trail’s first 3 miles up Mount Manitou to wonderful views of the surrounding mountains. Pikes Peak, ...
    •  3 to 5 hours
    •  6.4 miles
    •  Guide

    Barr Trail climbs 13 miles to the summit of Pikes Peak, but this great day hike follows the trail’s first 3 miles up Mount ...

  • #11 Anne U. White Trail

    2 Reviews

    Boulder, CO

    This breathtakingly beautiful run is situated along Four Mile Creek. Although there are no views of the surrounding area, the towering canyon walls provide not only a cool and refreshing place ...
    •  45 minutes
    •  3.3 miles
    •  Guide

    This breathtakingly beautiful run is situated along Four Mile Creek. Although there are no views of the surrounding area, ...

  • #12 Castlewood Canyon Loop

    1 Reviews

    Castle Rock, CO

    The trail drops quickly into Castlewood Canyon and stays there until reaching the ruins of the old Castlewood Canyon Dam, which is over 100 years old. The canyon portion of this run affords one ...
    •  1.25 hours
    •  6.7 miles
    •  Guide

    The trail drops quickly into Castlewood Canyon and stays there until reaching the ruins of the old Castlewood Canyon Dam, ...

  • #13 Lily Pad Trail #50

    5 Reviews

    Eagles Nest Wilderness Area, CO

    Lily Pad Trail #50 is a hiking trail in Summit County, Colorado. It is within Eagles Nest Wilderness Area and White River National Forest. It is 2.6 miles long and begins at 9,790 feet altitude. ...
    •  2.6 miles

    Lily Pad Trail #50 is a hiking trail in Summit County, Colorado. It is within Eagles Nest Wilderness Area and White River ...

  • #14 Switzerland Trail Colorado & North Western R. R.

    11 Reviews

    Roosevelt National Forest, CO

    Switzerland Trail Colorado & North Western R.. is a hiking, biking, and horse trail in Boulder County, Colorado. It is within Roosevelt National Forest. It is 5.3 miles long and begins at 8,655 ...
    •  5.3 miles

    Switzerland Trail Colorado & North Western R.. is a hiking, biking, and horse trail in Boulder County, Colorado. It is within ...

  • #15 Chihuahua Gulch Trail to Ruby Gulch

    5 Reviews

    Summit County, CO

    Chihuahua Gulch Trail to Ruby Gulch is a hiking, biking, and horse trail in Summit County, Colorado. It is within White River National Forest. It is 3.3 miles long and begins at 10,461 feet altitude. ...
    •  3.3 miles

    Chihuahua Gulch Trail to Ruby Gulch is a hiking, biking, and horse trail in Summit County, Colorado. It is within White River ...

  • #16 Lion Gulch Trail

    6 Reviews

    Roosevelt National Forest, CO

    Lion Gulch Trail is a hiking and biking trail in Larimer County, Colorado. It is within Roosevelt National Forest. It is 3.7 miles long and begins at 7,365 feet altitude. Traveling the entire ...
    •  3.7 miles

    Lion Gulch Trail is a hiking and biking trail in Larimer County, Colorado. It is within Roosevelt National Forest. It is ...

  • #17 Blue Lakes Trail

    5 Reviews

    Uncompahgre National Forest, CO

    Blue Lakes Trail is a hiking and horse trail in Ouray County, Colorado. It is within Uncompahgre National Forest and Mount Sneffels Wilderness Area. It is 6.3 miles long and begins at 12,630 ...
    •  6.3 miles

    Blue Lakes Trail is a hiking and horse trail in Ouray County, Colorado. It is within Uncompahgre National Forest and Mount ...

  • #18 Ouzel Falls Viewpoint

    6 Reviews

    Rocky Mountain National Park, CO

    Ouzel Falls Viewpoint is a hiking trail in Boulder County, Colorado. It is within Rocky Mountain National Park. It is 192 feet long and begins at 9,388 feet altitude. Traveling the entire trail ...
    •  0.0 miles

    Ouzel Falls Viewpoint is a hiking trail in Boulder County, Colorado. It is within Rocky Mountain National Park. It is 192 ...

  • #19 Walker Ranch

    6 Reviews

    Boulder County, CO

    Walker Ranch is a hiking, biking, and horse trail in Boulder County, Colorado. It is 7.8 miles long and begins at 7,227 feet altitude. Traveling the entire trail is 7.2 miles with a total elevation ...
    •  7.8 miles

    Walker Ranch is a hiking, biking, and horse trail in Boulder County, Colorado. It is 7.8 miles long and begins at 7,227 feet ...

  • #20 Red Rocks / Dakota Ridge Loop

    1 Reviews

    Englewood, CO

    A very scenic run with amazing views of Denver and Morrison as well as the red rock formations. The Dakota Ridge is quite rocky in places, so keep a slow pace. The Red Rocks Trail is much smoother. ...
    •  1.25 hours
    •  5.9 miles
    •  Guide

    A very scenic run with amazing views of Denver and Morrison as well as the red rock formations. The Dakota Ridge is quite ...