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Routes
Mountain biking trails
United States
Washington
Thurston County

Perimeter Trail and Maple Hollow Loop

Easy

4.6

(8635)

19,973

riders

Perimeter Trail and Maple Hollow Loop

01:17

14.8km

180m

Mountain biking

An easy 9.2-mile mountain biking loop in Millersylvania State Park, featuring forest trails and a public beach on Deep Lake.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Millersylvania State Park

Waypoints

A

Start point

Parking

Get Directions

1

329 m

Public Beach on Deep Lake

Highlight • Beach

This is one of a couple beaches open to the public on Deep Lake. This picnic spot with a sandy shore is just off the side of the trail, and …

Tip by

2

11.4 km

Millersylvania State Park is best known for its quiet camping options and the sizable Deep Lake, but it also has some great trails for hiking and easy mountain biking. The …

Tip by

B

14.8 km

End point

Parking

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Way Types & Surfaces

Way Types

7.78 km

3.51 km

3.12 km

376 m

Surfaces

5.34 km

4.68 km

2.46 km

756 m

709 m

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Elevation

Elevation

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

Highest point (110 m)

Lowest point (60 m)

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Weather

Powered by Foreca

Tuesday 7 July

26°C

9°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Frequently Asked Questions

What is the overall difficulty of the Perimeter Trail and Maple Hollow Loop for mountain biking?

This specific route is rated as easy for mountain biking. While the broader area may contain more challenging sections like the expert-level Maple Hollow Downhill, this particular loop is designed to be accessible and enjoyable for a wide range of riders.

What kind of terrain can I expect on this mountain bike route?

The route primarily features groomed singletrack and forest trails. You can expect a mix of packed dirt, some potentially loose gravel sections, and rolling climbs and descents. The terrain is generally flowy, making for a pleasant ride.

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

Yes, the route offers some pleasant sights. You'll pass by a Public Beach on Deep Lake, which can be a nice spot to pause. The trail also winds through a beautiful Forest trail in Millersylvania State Park, providing a scenic, natural setting.

What is the best time of year to mountain bike the Perimeter Trail and Maple Hollow Loop?

The trail is generally best ridden from late spring through early fall. Sections of the trail, particularly those in shaded forest areas, can become muddy and dangerous after heavy rain or during early spring and late fall due to soft surfaces. South-facing sections tend to dry out quicker, making them more accessible in shoulder seasons.

Does the route intersect with other trails in Millersylvania State Park?

Yes, this route combines several official trails within the park. It utilizes sections of the Perimeter Trail, Maple Hollow Loop, Fen Way Boardwalk, The Loop, Fitness Trail, Old Growth Lane, Orchard Way, and Bentley Trail to create the full experience.

Is the Perimeter Trail and Maple Hollow Loop dog-friendly?

Millersylvania State Park generally allows dogs on trails, but they must be kept on a leash at all times. Please remember to pack out any waste to keep the park clean for everyone.

What are the parking options for accessing this mountain bike route?

Parking is available within Millersylvania State Park. Specific trailhead parking areas will be clearly marked. It's advisable to check the park's official website for the most current information on parking locations and any potential fees.

Are there any permits or entrance fees required to access Millersylvania State Park?

Yes, a Discover Pass is required for vehicle access to state parks in Washington, including Millersylvania State Park. You can purchase a day-use pass or an annual pass online or at various vendors. Check the Washington State Parks website for current fees and purchase options.

How long does it typically take to complete this mountain bike route?

On average, mountain bikers can expect to complete the Perimeter Trail and Maple Hollow Loop in approximately 1 hour and 17 minutes. This duration can vary based on your riding speed, fitness level, and how often you stop to enjoy the scenery.

Is this route suitable for beginner mountain bikers?

Given its 'easy' difficulty rating, this route is generally suitable for beginner mountain bikers. The terrain is not overly technical, and the elevation gain is moderate, making it a good option for those looking for a pleasant ride without extreme challenges. However, some sections might have gentle climbs that require basic fitness.

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

For this route, you should bring a well-maintained mountain bike, a helmet, water, and basic repair tools (spare tube, pump). Depending on the weather, consider layers of clothing. Snacks are also a good idea for sustained energy. Don't forget your Discover Pass for park access.

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