Washington Trails
AssociationTrails for everyone, forever
Alert: On Oct. 1 the federal government began a partial shutdown that will impact National Parks, National Wildlife Refuges and U.S. Forest Service lands in Washington. Here's the latest information we have for hikers and campers.
47.4663,
-121.6742
Map & Directions
Length
Elevation Gain
Highest Point
Enjoy this low-key, child-friendly hike through aspen forest close to Seattle, just off the parking lot for Mailbox Peak.
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Trailhead
WTA Pro Tip: Save a copy of our directions before you leave! App-based driving directions aren't always accurate and data connections may be unreliable as you drive to the trailhead.
Take exit 34 from I-90. Head north on 468th Ave SE for approximately half a mile until the intersection with the SE Middle Fork Road. Turn right onto the Middle Fork Road. Follow SE Middle Fork Road 2.2 miles to the stop sign at the junction with SE Dorothy Lake Road. Head right onto SE Dorothy Lake Road, and just after it links back up with the Middle Fork Road, look for the turnoff for Mailbox Peak trailhead to your right.
Take the turnoff to the trailhead on the right and continue a short distance up the paved road to the paved parking lot with 40 spots and a vault toilet. The Grouse Basin Loop trailhead is at the far end of the parking area.
Important - Gate opening and closing times vary throughout the year, typically occurring approximately an hour after dawn and an hour before dusk. Current gate closure times will be posted at the trailhead.
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