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Recreation Region: Mt. Baker Ranger District

Tomyhoi Lake Trail 686

This trail is within Mt. Baker Wilderness. Gold Run Mining Company workers built this trail in the early 1900s. The trail begins with switchbacks taking you through an avalanche path thick with wildflowers in early summer, then enters timber and climbs until it breaks out to a flat bench in a meadow. The junction with Yellow Aster Butte Trail #686.1 is about 1.5 miles from the trailhead. Stay to the right at the junction and continue upward through the meadow to Gold Run Pass. The steep, pyramid shaped, reddish peak north of the pass is Mt. Larrabee. American and Canadian Border Peaks are also visible. From the pass, the trail quickly loses elevation, and a half mile below the pass reaches a meadow-covered bench known as Coyote Flats. The trail continues to the lake, which is a popular fishing spot. Camping is available near the lake. Avalanche debris and downed trees make the last half mile of the trail to the lakeshore and camps hard to follow.

Caution: The north side of Gold Run Pass is steep and exposed and can hold snow well into summer. Hikers will need an ice axe and experience traveling on snow to reach the lake before the snow melts.

Washington Trails Association Hiking Guide and Trip Reports 

Specific Trail Information

Trail Number

686

Trail Type

Standard/Terra Trail — A trail that has a surface consisting predominantly of the ground and that is designed and managed to accommodate use on that surface.

General Information

Black bears frequent the area. Food and scented items need to be stored in a secure manner.

Maps:
• Green Trails: Mt. Shuksan #14
• USGS: Mount Larrabee
• USFS: Mt. Baker Ranger District and Mt. Baker Wilderness.
 

Summer - Fall

No potable water.

Hikers only. Wilderness regulations apply within Mt. Baker Wilderness. No campfires or camping within one mile of Gold Run Pass.

Front view of Glacier Public Services Center

Address: 10091 Mt. Baker Highway Glacier, WA 98244
Phone: (360) 599-2714
Hours: Friday-Sunday 8 - 4:30, all passes and permits available. Thursday 8-4:30, Military, Access, 4th Grade Passes, and Forest Product Permits NOT available on Thursdays. Closed Monday-Wednesday

Getting There

Directions

From Glacier, Washington travel east on Mt. Baker Highway SR 542 for about 12 miles. Then turn left onto Twin Lakes Road (Forest Service road 3065). The road is located at the east end of the Department of Transportation's Shuksan maintenance facility. After 4.5 miles on Forest Service road 3065, reach the Tomyhoi Lake/Yellow Aster Butte Trailhead and parking area.

Additional Information

Operated By

US Forest Service

Nearby Recreation Sites

Last updated July 31st, 2025