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Routes
Running Trails
United States
Colorado

Summit County

The best running trails in Summit County

4.9

(7)

1,542

runners

222

runs

Jogging routes in Summit County, Colorado, traverse a diverse landscape within the Rocky Mountains, west of the Continental Divide. The region features prominent ranges like the Gore Range and Tenmile Range, with elevations varying significantly. Runners can experience alpine grasslands, tundra, and extensive montane and subalpine forests of lodgepole pine, aspen, spruce, and fir. The terrain offers a mix of challenging mountain trails and more accessible paths along rivers and reservoirs.

Best jogging routes in Summit County

  • The most popularโ€ฆ

Last updated: April 25, 2026

66

runners

#1.

Quandary Peak Trail

10.2km

02:26

980m

980m

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

5.0

(1)

33

runners

20.5km

02:58

900m

890m

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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27

runners

Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

20

runners

6.93km

00:59

420m

420m

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

18

runners

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

19

runners

22.2km

02:45

420m

420m

Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.

Hard

15

runners

8.14km

00:51

60m

60m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

13

runners

Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

11

runners

9.17km

02:59

890m

890m

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

11

runners

8.10km

01:09

330m

330m

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Popular around Summit County

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The Colorado Trail โ€” Ten incredible days in the Rocky Mountains

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Mountain Biking Collection by

Joey

Tips from the Community

Matthew
January 28, 2025, Dillon Nature Preserve

The Dillon Nature Preserve offers a handful of recreational facilities and activities as well as a couple hiking trails. The preserve has multiple overlooks for Dillon Lake Reservoir and is also located just outside of Keystone on the Dillon Reservoir Recpath.

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Ten Mile Canyon has a few official trailheads. In Frisco, almost all commuter trail junctions are well-marked with trail signs and mileage markers.

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Alex
September 16, 2024, View of Dillon Reservoir

From the Dillion Reservoir Recpath there are great views of the south end of the Dillion Reservoir. The edge of the water is only a few feet away, and with the occasional tree obstructing the view, it is overall a great way to see the reservoir.

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Matthew
August 19, 2024, Rainbow Lake

Rainbow Lake is an easy accessible body of water off of the Peaks Trail in Frisco, Colorado. The water's edge serves as a pretty picturesque spot with high mountain peaks looming in the background. This area is known for having moose pass through on a semi-regular basis.

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Matthew
January 4, 2024, Keystone Lake

Keystone Lake lies nestled against Hwy 6 in Dillon, Colorado. The lake is the site of ice skating and ice fishing in the winters and swimming, kayaking, and boating in the warmer months. The paved Snake River Trail runs right next to the water.

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The Dillon Nature Preserve is a popular summer and winter destination for hikers, XC skiing, snowshoeing, and fishing! There are numerous small paths that lead through wildflowers and take you down to the lake. The gravel road is plowed in the winter and this area is considered family friendly (including dogs)!

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Christopher
November 25, 2023, Keystone Lake

Keystone Lake offers both summer and winter activities. In the winter you can ice skate, and in the summers you can kayak or rent a peddle boat. In the winters you can use one of the fire pits they have located on the shore and they even light up a tree out on the ice.

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This mine is currently not in operation, but you can peer through the barriers to see old cart tracks and appreciate the deep history of the area.

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Frequently Asked Questions

How many running routes are available in Summit County?

Summit County offers a vast network of running trails, with over 190 routes available for jogging. These range from easy paths to challenging mountain ascents, catering to all experience levels.

Are there easy running routes suitable for beginners in Summit County?

Yes, Summit County has several easy running routes perfect for beginners. While specific easy routes aren't detailed here, the region's extensive trail networks include many gentler paths, especially along rivers and reservoirs. Look for trails with minimal elevation gain for a comfortable start.

What are some challenging running trails in Summit County for experienced runners?

For experienced runners seeking a challenge, Summit County offers numerous difficult trails. Consider the Quandary Peak Trail, a 6.3-mile route with significant elevation gain, or the Buffalo Mountain Loop, a demanding 12.7-mile path offering expansive views. Another option is the Ptarmigan Peak Trail, which features over 1100 meters of ascent over nearly 20 kilometers.

Can I find loop running routes in Summit County?

Absolutely. Many trails in Summit County are designed as loops, providing varied scenery without retracing your steps. A popular option is the Lakeshore Perimeter Trail Loop, a scenic 5.9-mile route around the reservoir. For a longer loop, the Dillon Reservoir Recpath Loop covers over 30 kilometers.

Are there scenic running routes with great viewpoints in Summit County?

Summit County is renowned for its stunning Rocky Mountain scenery. Many running routes offer breathtaking vistas. The Mount Royal Trail provides excellent views, and the Buffalo Mountain Loop offers expansive panoramas across the county. The Sapphire Point Overlook, accessible from various trails around Dillon Reservoir, also provides incredible views of the Gore Range and Tenmile Range.

What kind of terrain can I expect on Summit County running trails?

The terrain in Summit County is highly diverse, reflecting its location in the Rocky Mountains. You can expect a mix of alpine grasslands, tundra, and montane and subalpine forests. Trails range from well-maintained paths like the Summit County Recpath to rugged mountain trails with rocky sections and significant elevation changes. The Blue River and Tenmile Creek also offer paths through riparian zones.

Are the running trails in Summit County dog-friendly?

Many trails in Summit County are dog-friendly, but it's always best to check specific trail regulations before heading out. Generally, dogs are welcome on leash on most public trails. Ensure you practice Leave No Trace principles and carry waste bags.

What are some notable landmarks or natural features I might see while running in Summit County?

While running in Summit County, you'll encounter majestic natural features. You might see prominent peaks like Grays Peak or Torreys Peak in the distance. The expansive Dillon Reservoir is a central feature, with trails often running alongside it. You could also pass through historic areas like Boreas Pass or near mountain passes such as Kokomo Pass.

How can I access running trails using public transport or find parking in Summit County?

Summit County has a robust public transportation system, the Summit Stage, which can provide access to various trailheads, especially around towns like Breckenridge, Frisco, Dillon, and Silverthorne. Many popular trailheads also offer dedicated parking areas. It's advisable to check specific trailhead information for parking availability and public transport stops before your run.

What is the best time of year for jogging in Summit County?

The best time for jogging in Summit County is generally during the warmer months, from late spring through early autumn. The high-alpine climate offers pleasantly warm summers, ideal for outdoor activities. During this period, trails are typically clear of snow, and wildflowers are in bloom. Fall also brings stunning golden aspens, especially along routes like Boreas Pass Road.

How do other runners rate the trails in Summit County?

The running trails in Summit County are highly rated by the komoot community, with an impressive average score of 4.9 stars from over 7 reviews. Runners frequently praise the stunning Rocky Mountain scenery, the diversity of terrain, and the well-maintained trail networks that offer options for all skill levels.

Are there any less crowded running options in Summit County?

While popular trails can see significant use, especially on weekends, Summit County's extensive network means you can often find quieter routes. Exploring trails slightly off the main recreational paths or visiting during off-peak hours (early mornings or weekdays) can lead to a more solitary running experience. The Snake River Recpath offers a moderate option that might be less crowded than some of the major reservoir loops.

What is the typical elevation gain on running routes in Summit County?

Elevation gain on running routes in Summit County varies significantly due to the region's mountainous topography. You can find routes with minimal gain, such as those along the Blue River, but many trails involve substantial ascents. For example, the Quandary Peak Trail has nearly 1000 meters of elevation gain, while the Peaks Trail involves over 400 meters of climbing.

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Check out more Running Trails & Routes throughout Summit County below and find the perfect route in your destination.

SilverthorneMontezumaCopper MountainBlue RiverBreckenridgePtarmigan Peak WildernessFriscoKeystoneDillon

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