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Routes
Hiking trails & Routes
United States
Washington
King County

McDonald Mountain Trail

Hard

4.6

(5279)

17,384

hikers

McDonald Mountain Trail

09:19

29.6km

1,160m

Hiking

Hike the difficult McDonald Mountain Trail, a 18.4-mile route with 3821 feet of elevation gain, taking around 9 hours and 18 minutes.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

DNR

Waypoints

A

Start point

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1

13.3 km

DNR Trail

Highlight (Segment) • Trail

DNR roads splay in all directions in this area. The trails are a mix of gravel roads (for the more frequently used routes) and grass covered roads for the ones …

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B

29.6 km

End point

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Way Types & Surfaces

Way Types

29.3 km

362 m

Surfaces

6.97 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

Powered by Foreca

Today

Monday 18 May

16°C

5°C

12 %

Additional weather tips

Max wind speed: 8.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to hike this trail?

This is a challenging hike that typically takes around 9 to 10 hours to complete, depending on your pace and how often you stop. It covers a significant distance and elevation gain.

What is the difficulty level of the route?

The route is rated as difficult. It involves a substantial distance of nearly 30 km and over 1,100 meters of elevation gain, making it suitable for experienced hikers with good fitness levels.

Is the McDonald Mountain Trail dog-friendly?

The data available does not specify restrictions for dogs on this particular trail. However, it's always recommended to check local regulations and ensure your dog is capable of handling a long, difficult hike. Always keep dogs on a leash and pack out all waste.

Do I need a permit or pay an entrance fee to access the trail?

Information regarding permits or entrance fees for the McDonald Mountain Trail is not available in our current data. It's advisable to check with local land management agencies before your visit for the most up-to-date requirements.

What is the best time of year to hike this route?

Given its length and elevation, the best time to hike this route is typically during the warmer, drier months to avoid snow and ice, which can make difficult sections even more challenging. Always check weather conditions before heading out.

Where can I park for the McDonald Mountain Trail?

Specific parking details for the McDonald Mountain Trailhead are not provided in our data. We recommend researching local parking options or public transport routes to the trailhead before your trip.

What kind of terrain can I expect on the trail?

The route covers a significant distance with over 1,100 meters of elevation gain and loss, suggesting varied terrain. Expect a mix of ascents and descents, potentially including rocky or uneven paths, typical of a difficult mountain hike.

Are there any notable points of interest along the way?

Yes, a portion of the route includes the DNR Trail. This highlight suggests you'll encounter well-maintained trail sections and potentially scenic views within this area.

Is this a loop trail or an out-and-back route?

The provided data indicates that the total elevation gain and loss are nearly identical (1164.51m up and 1164.51m down), which is characteristic of a loop trail or a route that starts and ends at roughly the same elevation. However, without a map, we cannot definitively confirm if it's a perfect loop.

What should I bring for a hike on this trail?

For a difficult, nearly 30 km hike lasting 9-10 hours, you should bring plenty of water, high-energy snacks, appropriate layers of clothing for changing weather, navigation tools (like a map and compass or GPS device), a first-aid kit, and sturdy hiking boots. Trekking poles can also be beneficial for the elevation changes.

Is the trail suitable for families with young children?

Given its 'difficult' rating, long distance (nearly 30 km), and significant elevation gain (over 1,100 meters), this trail is generally not recommended for families with young children or beginner hikers. It requires a high level of fitness and endurance.

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Rattlesnake Ledge Trail

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