Boulder, CO Trails and Parks

Boulder has 268 trails in the vicinity, including 165 hiking trails and 74 for mountain biking. These trails range from 0 to 110 miles in length. The most popular trails are Switzerland Trail, Canyon Loop Trail and Caribou 4WD Route. Trails.com member Ashton L. recently completed Chautauqua Trail.
  • Canyon Loop Trail

    5 Reviews

    Boulder, CO

    A nice trail system, including an interpretive boardwalk, rambles through a wildlife habitat built around ponds that were once gravel pits. In a world where it often seems that nature is losing ...
    •  1 hour
    •  1.4 miles
    •  Guide

    A nice trail system, including an interpretive boardwalk, rambles through a wildlife habitat built around ponds that were ...

  • Chautauqua Trail

    5 Reviews

    Boulder, CO

    Chautauqua Trail is a hiking trail in Boulder, Colorado. It is 0.6 miles long and begins at 5,691 feet altitude. Traveling the entire trail is 1.2 miles with a total elevation gain of 463 feet. ...
    •  0.6 miles

    Chautauqua Trail is a hiking trail in Boulder, Colorado. It is 0.6 miles long and begins at 5,691 feet altitude. Traveling ...

  • Mount Sanitas and Mount Sanitas Valley Trails

    3 Reviews

    Boulder, CO

    Views from the summit meadow of this short loop are among the best in Boulder’s backyard, ranging west to the Indian Peaks; south to the back side of Flagstaff Mountain and the Flatirons; and ...
    •  45 minutes
    •  1.1 miles
    •  Guide

    Views from the summit meadow of this short loop are among the best in Boulder’s backyard, ranging west to the Indian Peaks; ...

  • Heil Valley Ranch Open Space Loop

    3 Reviews

    Boulder, CO

    A new trail in new open space just 8 miles from Boulder. Excellent singletrack riding through beautiful ponderosas with great views in all directions. This is a fantastic ride through the foothills ...
    •  1 to 2.5 hours
    •  8.1 miles
    •  Guide

    A new trail in new open space just 8 miles from Boulder. Excellent singletrack riding through beautiful ponderosas with great ...

  • Green Mountain Loop

    3 Reviews

    Boulder, CO

    Rising impressively along the Front Range, the Flatirons provide a dramatic backdrop for the city of Boulder. They also form the centerpiece for the beautiful and surprisingly wild Boulder Mountain ...
    •  4 hours
    •  4 miles
    •  Guide

    Rising impressively along the Front Range, the Flatirons provide a dramatic backdrop for the city of Boulder. They also form ...

  • Caribou 4WD Route

    3 Reviews

    Boulder, CO

    Fun route for stock vehicles with a variety of challenges. Trail sometimes doesn’t open until late June or early July depending upon winter snowpack. Route skirts eastern border of Indian Peaks ...
    •  Moderate
    •  2 hours
    •  2.8 miles
    •  Guide

    Fun route for stock vehicles with a variety of challenges. Trail sometimes doesn’t open until late June or early July depending ...

  • Switzerland Trail

    2 Reviews

    Boulder, CO

    This route follows the old railroad bed of the Switzerland Trail Railway. Enjoy broad vistas and stunning fall color. You’ll pass through Gold Hill where buildings, like the Gold Hill Store, ...
    •  Easy
    •  2 hours
    •  14.3 miles
    •  Guide

    This route follows the old railroad bed of the Switzerland Trail Railway. Enjoy broad vistas and stunning fall color. You’ll ...

  • Mount Sanitas

    2 Reviews

    Boulder, CO

    This short hike leads up the Sanitas Valley to the summit of Mount Sanitas (6,863 feet). Once on top of Mount Sanitas you are rewarded with some of the best views to be had in Boulder County. ...
    •  1 to 2 hours
    •  3.2 miles
    •  Guide

    This short hike leads up the Sanitas Valley to the summit of Mount Sanitas (6,863 feet). Once on top of Mount Sanitas you ...

  • Marshall Mesa

    2 Reviews

    Boulder, CO

    A beautiful Front Range hike with a great trail system and wonderful vistas in a parklike setting.
    •  1.5 to 3 hours
    •  3.3 miles
    •  Guide

    A beautiful Front Range hike with a great trail system and wonderful vistas in a parklike setting.

  • Lake Isabelle and Pawnee Pass Trail

    2 Reviews

    Boulder, CO

    Lake Isabelle may well be the jewel of the Brainard Lake Recreation Area and the Indian Peaks Wilderness. There are many hikes with lovely vistas, abundant wildflowers, and beautiful streams. ...
    •  6 hours
    •  7 miles
    •  Guide

    Lake Isabelle may well be the jewel of the Brainard Lake Recreation Area and the Indian Peaks Wilderness. There are many ...

  • Cobalt, Sage, & Eagle Loop

    2 Reviews

    Boulder, CO

    The initial section of trail offers a mellow option that travels downhill due east and then northeast from the parking lot. It rolls fairly gently in any direction you choose to take, except ...
    •  5.4 miles
    •  Guide

    The initial section of trail offers a mellow option that travels downhill due east and then northeast from the parking lot. ...

  • Coyote & Mule Deer Trails

    2 Reviews

    Boulder, CO

    Though for many years this state park was not well developed for recreation, it has finally been expanded into a hidden treasure easily accessible from the Denver, Boulder, and Golden areas. ...
    •  8 miles
    •  Guide

    Though for many years this state park was not well developed for recreation, it has finally been expanded into a hidden treasure ...

  • South Valley Park

    2 Reviews

    Boulder, CO

    Unlike many of the Jeffco Parks, this ride has no extended climbs. Yes, you will get your vertical elevation numbers in as it bobs, rolls and weaves around the spectacular red rock formation ...
    •  6.9 miles
    •  Guide

    Unlike many of the Jeffco Parks, this ride has no extended climbs. Yes, you will get your vertical elevation numbers in as ...

  • Big Bluestem and South Boulder Creek Trails

    2 Reviews

    Boulder, CO

    Sparkling under a bower of stately cottonwoods, South Boulder Creek is the focus of this pleasant flatland hike. The Bobolink Nature Trail section of this easy romp along South Boulder Creek ...
    •  1.5 hours
    •  2.6 miles
    •  Guide

    Sparkling under a bower of stately cottonwoods, South Boulder Creek is the focus of this pleasant flatland hike. The Bobolink ...

  • Royal Arch Trail

    2 Reviews

    Boulder, CO

    Broad, green meadows, thick aspen glens, and the clear waters of a mountain stream shelter this gently ascending route to a viewpoint overlooking the snowcapped peaks of the Continental Divide. ...
    •  3 hours
    •  5.2 miles
    •  Guide

    Broad, green meadows, thick aspen glens, and the clear waters of a mountain stream shelter this gently ascending route to ...

  • Meyers Homestead Trail

    2 Reviews

    Boulder, CO

    Views from the windswept summit of this foothills peak sweep west to encompass the arc of the Continental Divide and east onto the high plains. The top of Sugarloaf Mountain is exhilaratingly ...
    •  1 hour
    •  1.4 miles
    •  Guide

    Views from the windswept summit of this foothills peak sweep west to encompass the arc of the Continental Divide and east ...

  • Heil Valley Ranch

    2 Reviews

    Boulder, CO

    One of Boulder’s best hikes, this beautiful loop leads high into the foothills, passing through dense stands of ponderosa pines, open meadows with tall prairie grasses and spring wildflowers, ...
    •  2.5 to 4 hours
    •  8.1 miles
    •  Guide

    One of Boulder’s best hikes, this beautiful loop leads high into the foothills, passing through dense stands of ponderosa ...

  • 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, ...

  • Arapahoe Pass and Lake Dorothy Trail

    2 Reviews

    Boulder, CO

    This moderate and beautiful hike takes you to the Continental Divide by way of the valley created by the North Fork Middle Boulder Creek drainage. The campground and trail are very popular ...
    •  5 hours
    •  6.3 miles
    •  Guide

    This moderate and beautiful hike takes you to the Continental Divide by way of the valley created by the North Fork Middle ...

  • Boulder: Mount Sanitas

    2 Reviews

    Boulder, CO

    Mount Sanitas is a bolder Boulder hike, and access to its challenge is right in town. This hike is an obstacle course of boulders, log and rock steps, steep slabs, and rugged terrain. This ...
    •  2 hours
    •  3.36 miles
    •  Guide

    Mount Sanitas is a bolder Boulder hike, and access to its challenge is right in town. This hike is an obstacle course of ...

  • Rattlesnake Gulch

    1 Reviews

    Boulder, CO

    Close to Boulder, this ride has a little of everything. Diehards will enjoy the steep, tight climbing on the singletrack up Rattlesnake Gulch. Watch for traffic on roads and other users on singletrack. ...
    •  1 to 2 hours
    •  7.6 miles
    •  Guide

    Close to Boulder, this ride has a little of everything. Diehards will enjoy the steep, tight climbing on the singletrack ...

  • Left Hand Canyon Challenge

    1 Reviews

    Boulder, CO

    With beautiful scenery, long climbs, and face-peeling descents, this hilly half century has everything you’re looking for, and lots of it. Left Hand Canyon is one of the classic hill climbs on ...
    •  48.5 miles
    •  Guide

    With beautiful scenery, long climbs, and face-peeling descents, this hilly half century has everything you’re looking for, ...

  • Mount Sanitas

    1 Reviews

    Boulder, CO

    This trail will get your heart pounding, but there are remarkable views of Boulder and the famous Flatirons. This mountain trail is part of the free, well-marked and maintained Boulder Open Space, ...
    •  43 minutes up, 36 minutes down
    •  2.6 miles
    •  Guide

    This trail will get your heart pounding, but there are remarkable views of Boulder and the famous Flatirons. This mountain ...

  • Guardians of the Flatirons: Green Mountain, Bear Peak, and South Boulder Peak

    1 Reviews

    Boulder, CO

    This three-peak traverse is the pride of Boulder, giving you a deluxe tour of the local mountains and the slanted pinnacles of the Flatirons. A big hike that’s right in town.
    •  7–10 hours
    •  12.1 miles
    •  Guide

    This three-peak traverse is the pride of Boulder, giving you a deluxe tour of the local mountains and the slanted pinnacles ...

  • Heil Ranch

    1 Reviews

    Boulder, CO

    Heil Ranch is the latest park to open in the Boulder County open space system and is like many of the trails along the Front Range - you grid your way up, then blast down. And what a nice fun ...
    •  7.6 miles
    •  Guide

    Heil Ranch is the latest park to open in the Boulder County open space system and is like many of the trails along the Front ...