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Routes
Bike touring routes & trails
United States
Colorado
Clear Creek County

Guanella Pass

Moderate

4.6

(1318)

12,753

riders

Guanella Pass

01:02

12.9km

390m

Cycling

Cycle Guanella Pass in Arapaho National Forest, a moderate 8.0-mile route with 1277 feet of elevation gain and stunning alpine views.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Arapaho National Forest

Waypoints

A

Start point

Parking

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1

6.42 km

Guanella Pass Summit

Highlight • Mountain Pass

Guanella Pass sits at 11,669 feet in elevation & offers incredible views, especially in the fall when the aspens are changing. The pass separates two National Forests, the Arapaho & …

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B

12.9 km

End point

Parking

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Way Types & Surfaces

Way Types

12.4 km

494 m

Surfaces

12.4 km

269 m

225 m

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Elevation

Elevation

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Weather

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Today

Tuesday 2 June

11°C

1°C

44 %

Additional weather tips

Max wind speed: 16.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the terrain and difficulty like for cycling Guanella Pass?

The cycling route from Georgetown to the summit of Guanella Pass is a challenging climb. It covers about 10.8 miles with an elevation gain of approximately 3,308 feet, reaching a maximum elevation of 11,657 feet. The average grade is around 5.4%, with steeper sections reaching up to 10.9%. The road surface is generally excellent, making it a tough but rewarding ride. It's classified as a "Highest Category (HC) climb".

When is the best time of year to cycle Guanella Pass?

The best time to cycle Guanella Pass is typically from late May to late November, as this is when the road is usually open, depending on weather conditions. Spring and summer offer abundant wildflowers, while fall provides spectacular golden aspen foliage. Always check current road conditions before you go.

What kind of scenery can I expect along the route?

You'll experience diverse and breathtaking scenery. The route starts through dense forests, then opens up to expansive high-alpine tundra. Expect panoramic vistas of towering peaks, including prominent 14ers like Mount Bierstadt and Mount Evans. The roadside is vibrant with wildflowers in warmer months and golden aspens in the fall. You'll also pass the Guanella Pass Summit.

What wildlife might I see while cycling?

Wildlife sightings are common along the route. Keep an eye out for bighorn sheep, mountain goats, golden eagles, and even moose, especially in the higher alpine areas and near water sources.

Where can I park when cycling Guanella Pass?

If you're starting your ride from Georgetown, you can find parking within the town. The Guanella Pass Scenic Byway connects Georgetown with Grant, offering various access points and potential parking areas along the route. Specific parking details might vary, so it's good to check local signage.

Do I need any permits or pay entrance fees for cycling in Arapaho National Forest?

Generally, there are no specific permits or entrance fees required for cycling on the Guanella Pass Scenic Byway itself within the Arapaho National Forest. However, always be aware of any posted regulations or specific requirements for certain recreational activities or areas within the National Forest.

Is Guanella Pass dog-friendly for cyclists?

While the Guanella Pass Scenic Byway is a public road, specific regulations for dogs on the cycling route itself are not explicitly stated for cyclists. However, within the Arapaho National Forest, dogs are generally allowed but must be kept on a leash. Always practice Leave No Trace principles and clean up after your pet.

Is the Guanella Pass cycling route suitable for beginners?

Given its significant elevation gain and steep sections, the Guanella Pass cycling route is considered a challenging ride and is not typically recommended for beginners. It's classified as a "moderate" difficulty by komoot, but the climb from Georgetown is arduous, making it more suitable for experienced touring cyclists.

Are there any towns or amenities near the Guanella Pass cycling route?

Yes, the Guanella Pass Scenic Byway connects the historic mining town of Georgetown with the community of Grant. Georgetown offers charming Victorian-era architecture and amenities, making it a good place to start or finish your ride. Grant also provides some basic services.

What's a good strategy for tackling the climb on Guanella Pass?

The climb from Georgetown is often broken down into three distinct parts: an initial hard section, followed by a milder segment, and then a final challenging push to the summit. Pacing yourself through these sections, especially conserving energy during the initial hard climb, can be a good strategy for a successful ascent.

Is the Guanella Pass cycling route a loop or out-and-back?

The most common cycling approach for Guanella Pass is an out-and-back ride, typically from Georgetown to the summit and back, or from Georgetown to Grant and back. The full out-and-back from Georgetown to Grant is about 47.4 miles with significant climbing.

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