Gunbarrel, a region in Boulder County, Colorado, is characterized by its blend of open spaces and proximity to the Front Range of the Rocky Mountains. The area features rolling grasslands, two small lakes, and an extensive trail system, providing a diverse landscape for outdoor pursuits. Its position offers views of the iconic Flatirons and access to natural areas like Twin Lakes Open Space. This environment supports several sports like hiking, mountain biking, jogging, touring cycling, and more.
100
Routes
4.7
(36)
Average rating
1565
People visited

5
hikers
2.96km
00:49
50m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

11.2km
02:57
100m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

11.2km
02:57
100m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

5.0
(1)
28
hikers
5.62km
01:25
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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15
runners
4.69km
00:32
10m
10m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

10
runners
7.98km
00:54
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

65
runners
19.4km
02:02
100m
100m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

43
runners
6.23km
00:39
20m
20m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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5.0
(2)
10
riders
14.5km
01:11
110m
110m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

5
riders
3.44km
00:17
20m
20m
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

6.16km
00:25
80m
80m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

4.0
(1)
113
riders
49.4km
04:31
1,190m
1,190m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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4.0
(1)
1
riders
25.6km
01:50
210m
210m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

39
riders
49.5km
03:14
580m
580m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(2)
30
riders
30.4km
01:51
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

24
riders
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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66
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

51
riders
48.0km
02:46
830m
830m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

5.0
(2)
27
riders
29.2km
01:18
180m
180m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

32
riders
48.2km
02:08
340m
340m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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4.5
(4)
100
riders
60.8km
03:43
380m
380m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.0
(3)
30
riders
24.8km
01:31
130m
130m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

21
riders
39.6km
02:31
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

46
riders
54.0km
03:07
280m
280m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Gunbarrel offers a range of outdoor activities including hiking, mountain biking, jogging, touring cycling, road cycling, and gravel biking. The region features more than 100 routes for various skill levels. These activities take place across diverse landscapes, from open grasslands to trails around lakes.
Popular hiking trails in Gunbarrel include those within Twin Lakes Open Space, offering paths around two small lakes. The East Boulder Trail, accessible from the White Rocks Trailhead, provides a 2.20-mile (3.5 km) moderate hike with views of the Front Range. Other notable trails are the Lobo Trail and Twin Lakes Regional trails. For more hiking options, see Hiking around Gunbarrel.
Yes, Gunbarrel offers several easy hiking options suitable for various fitness levels. The Twin Lakes Open Space features walking and biking trails with crushed gravel paths, ideal for leisurely strolls. The Longmont-to-Boulder (LOBO) Regional Trail also provides an easy 2.9-mile (4.7 km) jog through Twin Lakes Open Space. For more options, refer to Easy hikes around Gunbarrel.
Gunbarrel is a popular area for mountain biking, featuring trails like the Lobo Trail, Twin Lakes Regional (east and west), Eaton Dirt Jumps, and Heatherwood Walden Link. The East Boulder Trail offers a mix of dirt roads, doubletrack, and singletrack suitable for various riders. The Lagerman Agricultural Preserve also provides about 7 miles (11 km) of singletrack. Explore more at MTB Trails around Gunbarrel.
Gunbarrel's trail network connects to larger regional systems, making it suitable for touring, road, and gravel cycling. The LOBO Trail and Cottonwood Trail offer scenic routes, avoiding busy road crossings. The East Boulder - Gunbarrel Loop is a moderate 15.9-mile (25.6 km) cycling route with expansive Front Range views. Guides like Cycling around Gunbarrel and Road Cycling Routes around Gunbarrel provide more details.
Joggers can find a variety of routes in Gunbarrel. The Twin Lakes Open Space offers crushed gravel paths around the lakes. The Longmont-to-Boulder (LOBO) Regional Trail is a popular 2.9-mile (4.7 km) option with Flatirons views. The LOBO and East Boulder Trail Loop provides a moderate 5.0-mile (8.0 km) run through open fields. For more running options, see Running Trails around Gunbarrel.
Gunbarrel is known for its scenic beauty, offering sweeping views of the Rocky Mountains and the iconic Flatirons. Key natural features include Twin Lakes Open Space, which encompasses two small lakes and provides opportunities for birdwatching. The area is characterized by open spaces and agricultural lands, enhancing its rural charm.
Gunbarrel is a popular destination on komoot, with more than 18,000 visitors having shared their experiences. The region features 103 routes, which have received an average rating of 4.61 out of 5 stars from over 700 ratings. This indicates a high level of satisfaction among outdoor enthusiasts using komoot.
Many trails in Gunbarrel, particularly within Boulder County Open Space areas like Twin Lakes, are dog-friendly. Specific regulations regarding leash requirements and waste disposal apply. Visitors should check local signage or the Boulder County Open Space website for the most current rules regarding pets on individual trails.
Generally, permits are not required for day hiking or biking on the public trails in Gunbarrel's open spaces, such as Twin Lakes or the East Boulder Trail. However, specific activities or areas might have unique regulations. It is advisable to consult the Boulder County Open Space and Parks website for any specific permit requirements for certain activities or locations.
Parking is available at various trailheads throughout Gunbarrel. For instance, the East Boulder Trail is accessible from the White Rocks Trailhead, which typically has parking facilities. Twin Lakes Open Space also provides designated parking areas for visitors. Specific parking availability can vary by trailhead and time of day.
Komoot offers several guides to help explore Gunbarrel. These include Hiking around Gunbarrel, MTB Trails around Gunbarrel, and Running Trails around Gunbarrel. There are also guides for Easy hikes around Gunbarrel, Cycling around Gunbarrel, Road Cycling Routes around Gunbarrel, and Gravel biking around Gunbarrel.
Gunbarrel is an unincorporated community within Boulder County, Colorado. It does not have its own municipal government or official website. For information related to open spaces and county services impacting Gunbarrel, refer to the Boulder County Official Website at https://bouldercounty.gov/. For general county inquiries, various department contacts are available on their website.

