Boulder Gardens Loop

Seattle + Tacoma Metro Area, Washington

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Boulder Gardens Loop


  • The trail junction for Boulder Gardens and Little Si.- Boulder Gardens Loop
  • Views toward Rattlesnake Ridge through the forest.- Boulder Gardens Loop
  • A smaller moss-covered boulder.- Boulder Gardens Loop
  • Moss and snow-covered boulder.- Boulder Gardens Loop
  • Views toward North Bend.- Boulder Gardens Loop
  • Views toward Snoqualmie Pass.- Boulder Gardens Loop
  • Sections of the trail are narrow.- Boulder Gardens Loop
  • A huge two story boulder along the Boulder Gardens Loop.- Boulder Gardens Loop
  • View toward Mount Washington.- Boulder Gardens Loop
  • Steep hills just off the trail.- Boulder Gardens Loop
  • - Boulder Gardens Loop
Overview + Weather
Huge boulders. Old-growth trees. Solitude.
Can't climb on boulders. Dense forest. Narrow trail.
Seattle + Tacoma Metro Area, WA
Pets allowed: 
Net Elevation Gain: 
1,300.00 ft (396.24 m)
Parking Pass: 
Washington Discovery Pass
Preferable Season(s):
Winter, Spring, Summer, Fall
Total Distance: 
2.60 mi (4.18 km)
Trail type: 
Trailhead Elevation: 
490.00 ft (149.35 m)
Current Local Weather:
Hike Description

Hike Description


Next to the busy Little Si Trail hikers can find the Boulder Garden Loop, which sees a fraction of the traffic. The name comes from the huge boulders that lay around the trail. Some of the boulders are two stories tall and completely covered in moss. The trail is well maintained, but it does get narrow at times.

The trail starts on the same path as Little Si, but it cuts off at around a quarter of a mile. There is a sign directing the way to the boulder gardens. Once the trails split, the Boulder Gardens trail becomes much steeper. The boulders are visible after a quarter of a mile, and most are covered in moss and other old-growth. Eventually there will be a sign directing you to the Boulder Garden Trail; ambitious hikers can also take a route to the Old Mount Si Trail.

If you continue on you will meet with the Little Si Trail at around a half mile into that trail. There are well marked signs along the way to direct you toward the right route.

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Field Guide

Field Guide

Location + Directions

Location + Directions

Nearby Camping + Lodging

(9 within a 30 mile radius)

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(144 within a 30 mile radius)

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Adventure Community

Who Wants To Do It
13 Members
Who's Done It
6 Members
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26 Adventures Explored
26 Adventures Published

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