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Routes
Hiking trails & Routes
United States
Washington
Snohomish County

Boulder Lake Trail

Hard

4.8

(5099)

15,957

hikers

Boulder Lake Trail

06:46

21.9km

770m

Hiking

Hike the difficult 13.6-mile Boulder Lake Trail in Snohomish County, Washington, gaining 2522 feet to a stunning alpine lake.

Last updated: February 26, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Morning Star Natural Resources Conservation Area

Henry M. Jackson Hydroelectric Project

Waypoints

A

Start point

Parking

Get Directions

1

10.9 km

Boulder Lake

Highlight • Lake

Boulder Lake trail has recently needed a lot of maintenance, reports say the DNR has begun to reclaim this trail. Hikers should go on at their own risk. The trail ends at an alpine lake with a dramatic mountain backdrop.

Tip by

B

21.9 km

End point

Parking

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Way Types & Surfaces

Way Types

21.9 km

< 100 m

Surfaces

21.9 km

< 100 m

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Elevation

Elevation

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Weather

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Today

Tuesday 7 July

21°C

11°C

0 %

Additional weather tips

Max wind speed: 10.0 km/h

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Frequently Asked Questions

How long does it take to hike the Boulder Lake Trail?

The full Komoot route for the Boulder Lake Trail is approximately 21.9 kilometers (13.6 miles) long and typically takes around 6 hours and 45 minutes to complete. This duration can vary based on your pace, breaks, and the challenging terrain.

What is the terrain like on this trail?

The terrain is quite varied and challenging. You'll start on a well-beaten path through second-growth trees, but it quickly becomes steep with tree roots making for tricky, often muddy, footing. The trail can be narrow, and in some places, the tread might disappear entirely, requiring route-finding skills. Expect immense avalanche slopes littered with class 2 boulder fields that require scrambling.

What can I see along the route?

This trail offers stunning scenery, including lush ferns, dense forests, and glimpses of Boulder Lake through the trees as you approach. You'll encounter rugged peaks, seasonal wildflowers like lupine and columbine, picturesque rushing falls, and swimming holes along Boulder Creek. The lake itself is an azure gem set within a cirque of metamorphic cliffs.

Is the Boulder Lake Trail suitable for beginners?

No, this trail is rated as difficult. It requires perseverance due to steep terrain, potentially disappearing trail tread, and a final class 2 boulder field scramble. It's not considered a 'walk in the park' and is best suited for experienced hikers.

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

The best time to hike this trail is typically during the warmer months when snow has melted and seasonal wildflowers are in bloom. Wildflowers like lupine, Indian paintbrush, and columbine are particularly vibrant. Always check current trail conditions before heading out, as snow can linger at higher elevations.

Are dogs allowed on the Boulder Lake Trail?

Specific regulations regarding dogs on this particular Boulder Lake Trail in Snohomish County, Washington, are not detailed. It's always best to check with the local land management authority for the Morning Star Natural Resources Conservation Area before bringing your dog to ensure compliance with any leash laws or restrictions.

Do I need a permit or pay an entrance fee for this trail?

The Boulder Lake Trail is located within the Morning Star Natural Resources Conservation Area. While specific permit or fee requirements for this exact trail are not provided, it's common for conservation areas to have parking passes or permits. Always check the official website for the Morning Star Natural Resources Conservation Area or nps.gov for the most up-to-date information on fees and permits before your visit.

What kind of wildlife might I encounter?

The area is known to have wildlife, including black bears. It is highly recommended to carry bear spray and know how to use it. If you plan on camping, bear canisters are required for food storage to protect both your food and the wildlife.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Greider Lakes Trail and the Greider/Boulder Lakes Trail, which are official trails in the area.

Is there parking available at the trailhead?

Information regarding specific parking facilities for this Boulder Lake Trail is not detailed. Hikers should plan to research trailhead access and parking availability in advance, especially for popular hiking destinations, as parking can sometimes be limited or require a specific pass.

Are there any specific safety considerations for this hike?

Given the trail's difficulty, steep terrain, and potential for disappearing tread, strong route-finding skills are essential. Be prepared for muddy conditions and boulder scrambling. As black bears are present, carrying bear spray is advised. Always inform someone of your hiking plans and expected return time.

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5.0

81

Elliot Creek (Goat Lake) Trail

07:12h

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