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Routes
Mountain biking trails
United States
Alaska
Juneau City And Borough

Peterson Lake Trail

Easy

4.6

(4020)

10,674

riders

Peterson Lake Trail

01:16

13.3km

220m

Mountain biking

Embark on an easy mountain biking adventure along the Peterson Lake Trail, a route that winds for 8.2 miles (13.3 km) through the vibrant rainforest of Tongass National Forest. You will gain 731 feet (223 metres) in elevation over approximately 1 hour and 16 minutes of riding. Expect a dynamic…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Tongass National Forest

Waypoints

A

Start point

Parking

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1

6.63 km

Peterson Lake Cabin

Highlight • Mountain Hut

The trail does continue farther along the shore of Peterson Lake; however, that section of trail is particularly prone to flooding and muddy conditions during the summer, so it's generally …

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B

13.3 km

End point

Parking

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Way Types & Surfaces

Way Types

13.2 km

< 100 m

Surfaces

12.8 km

410 m

< 100 m

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Elevation

Elevation

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Weather

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Today

Friday 17 July

19°C

10°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

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Frequently Asked Questions

What is the terrain like for mountain biking on this trail?

The trail is primarily a "Standard/Terra Trail" with a ground surface. Expect numerous muddy sections, slippery planks, and after passing through muskegs, it becomes quite eroded with many exposed roots and rocks. Some describe it as the "most intensely rooted trail Juneau has to offer," involving a "muddy slog" through dense root systems. While the first mile might be a gravel path, the overall ride is rugged.

How challenging is the Peterson Lake Trail for mountain biking?

Despite its relatively low elevation gain, this trail is considered moderate to potentially difficult for mountain biking. The technical aspects, including intense roots, mud, and eroded sections, make it more challenging than an "easy" rating might suggest for most riders. It has a "Blue" climb difficulty rating on Trailforks, indicating a more demanding experience.

What can I see along the route?

You'll ride through a vibrant rainforest with Sitka spruce, ferns, devil's club, and blueberry bushes. The trail leads to Peterson Lake Cabin, a serene destination on Peterson Lake, known for its floating pond lilies and pleasant views. The area is also home to migrating and nesting birds, and various mammals. You might also spot views of the lake from a power line tower along the way.

Where can I park to access the trailhead?

Information regarding specific parking facilities for the Peterson Lake Trail is not detailed in our sources. However, as a popular trail near Juneau, it is generally accessible. We recommend checking local Juneau trail resources or the Tongass National Forest website for the most current parking information and directions to the trailhead.

Is the Peterson Lake Trail dog-friendly?

While many trails in the Tongass National Forest are dog-friendly, specific regulations for this trail regarding dogs (e.g., leash requirements) are not explicitly stated. It's always best to check with the Tongass National Forest service directly for current rules to ensure a safe and compliant visit with your pet.

Do I need a permit or pay an entrance fee to mountain bike this trail?

The Peterson Lake Trail is located within the Tongass National Forest. Generally, there are no entrance fees for accessing national forests for day use. However, if you plan to use the Peterson Lake Cabin, a rental fee and reservation are required. For the most up-to-date information on any potential permits or fees, especially for specific activities, it's advisable to consult the official USDA Forest Service website for the Tongass National Forest.

What is the best time of year to mountain bike this trail?

Due to its relatively lower elevation of approximately 750 feet above sea level, this trail offers a longer accessible season compared to higher alpine trails in the region. The lush rainforest scenery is vibrant throughout the warmer months. However, be prepared for muddy conditions, especially during and after rain, which can occur frequently in the Juneau area. The trail is not ideal for winter mountain biking due to snow and ice.

Are there any historical elements along the trail?

Yes, the initial two miles of the trail follow the alignment of an old mining tram built around 1900. You can still see remnants of this historical route, offering a glimpse into the area's past as you ride through the rainforest.

What kind of wildlife can I expect to see?

The area around Peterson Lake is known for migrating and nesting birds. You might also encounter various mammals typical of a rainforest environment. Keep an eye out for local flora like Sitka spruce, ferns, devil's club, skunk cabbage, and blueberry bushes.

Is it a loop trail or an out-and-back?

Based on the provided tour data and descriptions, the Peterson Lake Trail is primarily an out-and-back route, leading to Peterson Lake and the cabin. There is no indication of a full loop option for mountain biking.

What should I bring for a mountain bike ride on this trail?

Given the trail's rugged and often muddy conditions, it's essential to bring appropriate gear. This includes a mountain bike suitable for technical terrain, sturdy tires, and protective gear. Waterproof clothing is highly recommended due to the rainforest environment and potential for mud. Carry enough water, snacks, a basic bike repair kit, and navigation tools. Insect repellent might also be useful.

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