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Seattle Trails

Seattle, WA: Fuller Mountain

Take a walk through the woods on this tour of the Snoqualmie Forest near North Bend's Mt. Si. Access lakes and enjoy a view of Mt. Si's Moon Wall from the top of Fuller Mountain.

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Knowing we’d be a little short on time this week, we spent some time looking for short hikes that didn’t take us too far out on I-90. We decided on an interesting little knob just west of Mt. Si called Fuller Mountain, located in what is now called the Snoqualmie Forest, a sprawling working forest near North Bend.
Fuller Mountain sits on land that made up some of the original acreage purchased by the newly formed Weyerhaeuser Company in 1900. Over the years, as the company harvested timber and replanted it in successive waves, the 104,000 acres of timberland came to be known as the Snoqualmie Tree Farm. For decades Weyerhaeuser allowed recreational access to the Tree Farm, including hiking, biking, fishing, and hunting. In 2003 Weyerhaeuser sold all 104,000 acres to the Hancock Timber Resource Group who currently manages the property and continues the tradition of allowing recreational access to the area. A year later, in 2004, King County purchased the development rights to 90,000 acres of the Tree Farm in one of the largest public purchases of development rights in U.S. history. Thus safeguarded against future suburban growth, the name was officially changed to the Snoqualmie Forest.
The trail begins at Spur Gate 10, narrowly winding through uniformly planted Douglas fir to Ten Creek. After crossing the creek and continuing on the trail for a few minutes, you will eventually find yourself dumped onto a logging road. At this point many hikers are understandably confused. Head to the left and follow the road for a minute or two to the first intersection with a spur road. Take this road uphill for a few hundred yards to pick the trail back up again. The small path isn’t immediately obvious so keep an eye out for it on the left.
From here the trail traverses rocky fields and winds through a sparse forest of alder awash in sword fern. Through the trees you’ll catch increasingly better glimpses of Klaus Lake as you get closer to the summit. The highest point of Fuller Mountain does not have any view, so be sure to continue on to southeast to a rocky outcropping that overlooks much of the Snoqualmie Forest and gives a nice view of Mt. Si’s Moon Wall.
Expect to have this trail largely to yourself; the combination of a somewhat confusing route and being located within a working forest probably keeps hikers on more familiar trails in other locations. The quiet solitude does have a price – the lack of foot traffic means this trail is barely scratched into the side of the mountain and can be a little tough to navigate. Soil is loose and rocky and there are a few trees that need to be crawled over or around. Despite a few obstacles, Fuller Mountain was a peaceful alternative to the crowds of Tiger or Si, and the view at the top was well worth the climb.
-Mapped by Nathan and Jeremy Barnes,


Trail Facts

  • Distance: 2.8
  • Miles from city center: 36



Location: 47.57535, -121.738579

Park outside of Spur Gate 10: Do not block the gate. The small trail begins on the north side of the road and dips toward an overgrown log bridge that cruises over Ten Creek.


Location: 47.578118, -121.741819

Road Crossing. Trail continues on the other side of the road.


Location: 47.580757, -121.744859

Junction with a road. Turn left and follow the road.


Location: 47.580463, -121.746279

Y in the road. Make a sharp right up road.


Location: 47.581058, -121.746216

Make a left back onto the trail. If you reach the end of the road, you’ve gone too far.

Ten Creek Crossing

Location: 47.577394, -121.739759

Unique log bridge, is overgrown with vegetation.

Small Rock Slide

Location: 47.584168, -121.749544

Walking over one of several small rock slides on the west slope of Fuller Mountain

Klaus Lake

Location: 47.585934, -121.750102

The lake ducks in and out of view through the red alders as you progress along the trail

In Bloom

Location: 47.587555, -121.747355

Forest wildflower in spring bloom


Location: 47.586557, -121.744527

Trail ends on small rock outcrop, which is the summit of Fuller Mountain.

Savoring the View

Location: 47.586542, -121.744137

Taking in the view of Mt. Si, and North Bend to the South.

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