Island Lake Trail

This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
This reflects the return distance of this route as measured by the GPS file.
15.9 km
This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
901 m
User Ratings
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Directions to Trailhead

Island Lake Trail is a heavily trafficked out-and-back trail in Mount Baker-Snoqualmie National Forest that provides pretty lake views, wildflowers, and peekaboo mountains. This trail and the many others in the surrounding area are often used for both day trips and backpacking adventures, and the trail can be hiked further or kept short while still being enjoyable.

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Route Description for Island Lake Trail

Island Lake Trail is one of many in a particularly enjoyable part of Mount Baker-Snoqualmie National Forest. Streams, other lakes, and mountains peeking through the vibrant forest follow you to the lake. The wildflowers in summer are great, but the serenity in the shoulder season is also a draw.

Beginning from the Ira Spring Trailhead, hike a few steps before taking a sharp right at the first junction. You’ll cross Mason Creek and continue on, covering a fairly relaxed section before heading up some switchbacks. Where you reach a junction on the corner of a switchback, stay left.

The trail leads you above Mason Lake. There are several intersecting trails, so keep hiking straight and then keep right towards Sir Richard Pond. Wrap around Rainbow Lake, keeping right again to drop south towards Island Lake.

After enjoying the lakeshore, you can either turn back and retrace your steps, wander down to Mason Lake, or set up camp at one of the nearby sites.

Getting to the Island Lake Trail Trailhead

The trailhead for the hike to Island Lake Trail is at the end of Mason Lake Road at the Ira Spring Trailhead.

Route Information

  • Backcountry Campground

    Mason Lake Backcountry Camping

  • When to do


  • Pets allowed

    Yes - On Leash

  • Family friendly

    Older Children only

  • Route Signage


  • Crowd Levels


  • Route Type

    Out and back

Island Lake Trail Elevation Graph

Weather Forecast

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Island Lake Trail Reviews

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