4.7
(809)
17,776
hikers
621
hikes
Hiking in Boulder County offers diverse landscapes where the Great Plains meet the Rocky Mountains, providing access to varied terrain. The region is characterized by iconic tilted sedimentary rock formations like the Flatirons, dramatic canyons such as Eldorado Canyon, and significant mountain peaks including Green Mountain and Bear Peak. Hikers can explore wide-open meadows, dense forests of ponderosa pine and Douglas fir, and scenic alpine lakes.
Last updated: April 26, 2026
4.9
(14)
232
hikers
12.6km
03:50
440m
440m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.9
(14)
232
hikers
12.6km
03:50
440m
440m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(12)
234
hikers
5.37km
01:49
280m
260m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(12)
234
hikers
5.37km
01:49
280m
260m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.9
(8)
163
hikers
9.38km
02:50
190m
130m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
5.0
(3)
154
hikers
9.47km
02:38
230m
90m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(4)
150
hikers
5.86km
01:36
90m
90m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(6)
143
hikers
11.5km
03:04
110m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.8
(4)
95
hikers
7.13km
02:09
240m
250m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
77
hikers
6.90km
02:03
250m
170m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Isabelle lake still has lots of water, later in September it has often very low water
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If you're looking for a picturesque spot off the beaten path, you should definitely check out Red Rock Lake. At an elevation of around 10,500 feet, this hidden gem is often overshadowed by Brainard Lake, but it's worth a visit. The lake offers stunning reflections and vibrant colors, making it a photographer's paradise, especially during sunrise or after sunset. Red Rock Lake is located inside the Brainard Lake Recreational Area off the Peak to Peak Highway (Hwy 72) near Ward, CO. You can visit the area throughout the summer and into October without a fee if you are on your bike.
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Long Lake is an alpine that sits over 10,000 feet in elevation. It's surrounded by a beautiful backdrop of the Indian Peaks. The shore around the lake is a great spot to see moose and wildflowers in the summer.
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Brainard Lake is a beautiful alpine lake in the Indian Peaks Wilderness below the Continental Divide surrounded by subalpine forest. It is in the Brainard Lake Recreation Area, which during the summer season usually requires a reservation and a fee, but if you are on your bike you do not need to pay or reserve a time slot. Because of the area's high elevation, snow typically remains until late spring, even on the paved road to the lake.
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More Information
FAQs about hikes in Boulder County
Boulder County offers an extensive network of over 420 hiking routes, catering to various skill levels. You'll find everything from easy strolls to challenging mountain ascents across its diverse landscapes.
Hikers in Boulder County can experience a wide range of terrain, from wide-open meadows and agricultural lands to dense forests of ponderosa pines and Douglas fir. Trails often feature significant elevation changes, leading to prominent peaks like Bear Peak and Green Mountain, or traversing dramatic canyon landscapes such as those found in Eldorado Canyon State Park. The region offers routes with varying elevation gains, from gentle inclines to strenuous climbs.
Yes, Boulder County has many trails suitable for families. While specific 'easy' routes are numerous, you can find options that offer a mix of open land and forest, such as those at Betasso Preserve. Many trails provide a great opportunity for children to explore nature without overly challenging terrain. Look for routes with shorter distances and less elevation gain for a comfortable family outing.
Boulder County offers many dog-friendly trails, but regulations vary by specific open space and park areas. It's always best to check the local rules for each trail, as some may require dogs to be on leash, while others might have restrictions in certain seasons or areas to protect wildlife. Always ensure your dog is under control and that you clean up after them.
Boulder County is rich with iconic natural features. You can hike to the base of the famous Flatirons, or reach the Green Mountain Peak for 360-degree vistas. Other prominent peaks include Bear Peak and South Boulder Peak. Dramatic canyon views can be found in Eldorado Canyon, and higher elevations like the Indian Peaks Wilderness offer stunning alpine scenery and lakes such as Lake Isabelle.
Yes, Boulder County features several excellent loop trails. For instance, the Mount Sanitas Loop offers panoramic views of Boulder, while the Anemone Loop Trail provides a moderate challenge. Further out, the Walker Ranch Loop traverses diverse ecosystems. These loops are great for experiencing varied landscapes without retracing your steps.
Boulder County offers hiking opportunities year-round, but the best time depends on your preference. Spring and fall provide pleasant temperatures and beautiful scenery, with wildflowers in spring and vibrant foliage in autumn. Summer is ideal for higher elevation trails, though afternoon thunderstorms can occur. Winter hiking is possible on lower elevation trails, often requiring appropriate gear for snow and ice. Always check trail conditions before heading out.
The hiking experience in Boulder County is highly rated by the komoot community, with an average score of 4.7 stars from over 690 reviews. Hikers frequently praise the iconic rock formations like the Flatirons, the diverse forest ecosystems, and the scenic alpine lakes. Many appreciate the variety of trails that cater to all ability levels, from easy strolls to challenging mountain ascents, and the opportunity to spot local wildlife.
While many trails in Boulder County's Open Space and Mountain Parks do not require permits for day hiking, some popular areas or specific activities might. For example, certain trailheads or parks, especially within the Indian Peaks Wilderness or Eldorado Canyon State Park, may require timed entry reservations or permits, particularly during peak seasons. It's advisable to check the specific requirements for your chosen destination, especially for areas managed by the US Forest Service or Colorado State Parks. For general information on activities, you can visit bouldercounty.gov.
Many trails in Boulder County provide excellent opportunities for wildlife viewing due to its diverse ecosystems. Areas like the Indian Peaks Wilderness, particularly around Lake Isabelle, are known for moose sightings. Trails traversing open meadows and forests, such as those at Betasso Preserve or Walker Ranch, can offer glimpses of deer, elk, and various bird species. Early mornings or late afternoons are often the best times for wildlife observation.
Yes, Boulder County features several trails that lead to scenic cascades, providing opportunities for waterfall hikes. While specific named waterfalls are numerous, the region's dramatic canyon landscapes and mountain streams often create beautiful water features, especially during spring runoff or after heavy rains. Exploring areas with significant elevation changes and water sources will increase your chances of finding these natural attractions.
For beginners or those seeking a relaxed outing, Boulder County offers numerous easy day hikes. While the guide highlights moderate trails, you can find many shorter, less strenuous options within the Boulder Open Space & Mountain Parks system. For example, the Green Mountain West Ridge Trail is an easy route. Look for trails with minimal elevation gain and shorter distances, often found in the lower foothills or open space areas, which still provide beautiful views without a demanding climb.


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