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United States
Colorado
Boulder County
Eldora

Jenny Creek and Guinn Mountain Trail

Hard

2.9

(27)

51

runners

Jenny Creek and Guinn Mountain Trail

02:28

16.5km

550m

Running

Jog the difficult 10.3-mile Jenny Creek and Guinn Mountain Trail, gaining 1803 feet through forests and alpine lakes.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Roosevelt National Forest

Waypoints

A

Start point

Parking

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1

40 m

Eldora Mountain

Highlight • MTB Park

This is a popular ski area in the winter and mountain biking hub in the summer. From here you can access a number of hiking and running trails up to Byan Mountain, Guinn Mountain, Yankee Doodle Lake, and beyond.

Tip by

2

8.25 km

Yankee Doodle Lake

Highlight • Lake

Yankee Doodle Lake is a popular fishing spot located in the Roosevelt National Forest in Colorado. It is known for its abundance of trout species, including rainbow, brook, and cutthroat …

Tip by

B

16.5 km

End point

Parking

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Way Types & Surfaces

Way Types

16.5 km

< 100 m

Surfaces

11.0 km

3.67 km

1.89 km

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Elevation

Elevation
Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

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Today

Saturday 24 October

4°C

-4°C

35 %

Additional weather tips

It’s going to be cold. Wrap up warm and watch out for ice.

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This route was planned by komoot.

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Frequently Asked Questions

What is the overall difficulty of the Jenny Creek and Guinn Mountain Trail for jogging?

This trail is rated as difficult for jogging. It features diverse and challenging terrain, including technical, rock-filled sections, steep inclines, and significant rock ledges. The high altitude in Roosevelt National Forest also adds to the challenge, making even moderate climbs feel more strenuous.

Where can I park to access the Jenny Creek and Guinn Mountain Trail?

Access to the trail near the Eldora Mountain ski area may involve crossing private land. It's important to note that this access is not open for public use when the resort is closed. Always check local regulations and access points before heading out.

Is the Jenny Creek and Guinn Mountain Trail dog-friendly?

The provided information does not explicitly state whether dogs are allowed on this specific trail. However, as it is located within Roosevelt National Forest, it's generally advisable to check the specific regulations for the forest and any designated wilderness areas within it regarding pets, including leash laws and restricted zones, before bringing your dog.

What is the best time of year to jog this trail?

The trail offers different experiences throughout the year. While summer provides more accessible conditions, be prepared for high altitude. In winter, deep snow can make the trail much more arduous, though it might be packed down by other users. Consider late spring to early fall for the most favorable jogging conditions, keeping in mind the elevation.

Are there any permits or fees required for this trail or Roosevelt National Forest?

While the trail itself doesn't explicitly mention a jogging permit, it's located within Roosevelt National Forest. For motorized vehicles like ATVs and snowmobiles, an OHV permit is required. It's always a good practice to check the official U.S. Forest Service website for Roosevelt National Forest for any current regulations, entrance fees, or specific permits that might apply to recreational activities in the area.

What kind of scenery can I expect along the route?

Joggers can enjoy a variety of picturesque views, including dense forests, scenic creek crossings, and alpine lakes like Jenny Lake. You'll also pass through areas with open fields offering expansive vistas, and sections affected by pine beetle mitigation efforts that provide views of the higher points along the James Peak Wilderness. The trail also parallels the historic Moffat Road.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Jenny Creek Trail, Boulder Wagon Road, Guinn Mountain Trail, Lake Eldora Ski Road, Rollins Pass Road, and Guinn Mountain Spur Road.

Are there any notable landmarks or points of interest along the way?

Yes, you'll pass by the Eldora Mountain area and the scenic Yankee Doodle Lake. The trail also serves as a standard approach to the Guinn Mountain Hut, an A-frame building near the James Peak Wilderness Area.

What is the terrain like on the Guinn Mountain Trail section?

The Guinn Mountain Trail specifically is rated with a 'Black Diamond' difficulty, indicating a demanding singletrack experience. It features considerable elevation gain (approximately 1,344 feet) over its 2.1 miles, including both long downhill sections and sustained uphill climbs. Expect technical, rocky, and potentially steep conditions.

What should I be aware of regarding the high altitude on this trail?

The Jenny Creek and Guinn Mountain Trail is located at a high altitude within Roosevelt National Forest. This means the air is thinner, which can significantly increase the difficulty of jogging, even on moderate inclines. It's crucial to be prepared for the elevation, hydrate well, and allow for acclimatization if you're not used to high-altitude exercise.

Is this trail suitable for families or beginners?

Given its 'difficult' rating and technical terrain, including steep inclines and rocky sections, the Jenny Creek and Guinn Mountain Trail is generally not recommended for beginners or young families looking for an easy outing. It's best suited for experienced joggers seeking a challenging high-altitude adventure.

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