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Pete Lake

Snoqualmie Region > Salmon La Sac/Teanaway
47.4350, -121.1855 Map & Directions
9.0 miles, roundtrip
Elevation Gain
400 feet
Highest Point
3,200 feet
Calculated Difficulty About Calculated Difficulty
Pete Lake with the Alpine Lakes Wilderness rising beyond. Photo by jbrink
  • Wildflowers/Meadows
  • Mountain views
  • Wildlife
  • Established campsites
  • Dogs allowed on leash
  • Old growth
  • Good for kids
  • Lakes
  • Rivers

Parking Pass/Entry Fee

Northwest Forest Pass
Saved to My Backpack

The Pete Lake trail is a mild-mannered path with something to offer for hikers, campers, children, birders, wildlife enthusiasts, and aquaphiles. This even-tempered route follows the Cooper River 4.5 miles to its headwater, passing through a diverse old-growth forest and terminating at an alpine lake sitting in the shadows of Big Summit Chief and Chimney Rock. Continue reading

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Hiking Pete Lake

Pete Lake is the headwater of the Cooper River, the most significant waterway of the Salmon la Sac region. The trail to the lake is one of the more popular hiking pathways on the east side of Snoqualmie Pass, with its diversity of uses and wildlife. It is enjoyable for campers, hikers, and birders. Climbers use it as a staging area for tackling Big Summit Chief and Chimney Rock.

From the parking area the trail heads northwest into the forest, at times hugging the Cooper River. Pass under towering old growth western white pine, Douglas fir, western hemlock, mountain hemlock, and Engelmann spruce—you may need to check cones to tell who’s who! The trail has a mild amount of up-and-down, some of which results from crossing eight easily-forded creeks. Pack animals walk this trail, too, so watch your steps.

The trail’s grade and direction are consistent; 4.5 miles from and 400 feet higher than your starting point, bootpaths diverge and reach out to campsites at the shore of the lake. Along the way and at the lake, you may notice hummingbirds, common mergansers, pine siskins, evening grosbeaks, fishers, and martens. Deer, bobcats, coyotes, and cougar prowl this area. Also be cautious for wildflower overload: the list includes but is not limited to oxeye daisy, lupine, paintbrush, fireweed, Columbia lily, thimbleberry, salmonberry, candyflower, Queen Anne’s lace, buttercup, heartleaf arnica, western columbine, queen’s cup, and bunchberry dogwood.

When you reach the lake, which sits in a broad basin, apply your bug spray, for the mosquitoes love this lake, too. Watch the birds, photograph the flowers, or take a swim in the shallow waters. When the weather is clear and the waters are calm, Chimney Rock to the left and Big Summit Chief to the right, both to the northwest, are reflected in the waters.

Toilet Information

  • Toilet at trailhead

More information about toilets

WTA worked here in 2022, 2019, 2017, 2016, 2014 and 2010!

Hike Description Written by
Maxwell Krem, WTA Correspondent

Pete Lake

Map & Directions

Co-ordinates: 47.4350, -121.1855 Open in Google Maps

Before You Go

See weather forecast

Parking Pass/Entry Fee

Northwest Forest Pass

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.

Getting There

From Seattle, drive east on I-90 and take exit 80 (Roslyn/Salmon la Sac). Turn left (north) onto Bullfrog Road. Drive it for 2.8 miles, passing through two traffic circles. Exit the second traffic circle onto WA-903 north, driving through Roslyn and past Cle Elum Lake to a junction with FR-46. (From I-90 this is a total of 16.8 miles.)

Turn left (west) on FR-46 (signed for FR 4600) and follow 4.7 miles. Turn right on FR-4616 and continue 1 mile to the trailhead.

More Hike Details


Snoqualmie Region > Salmon La Sac/Teanaway

Pete Lake (#1323)

Okanogan-Wenatchee National Forest, Cle Elum Ranger District

Guidebooks & Maps

Day Hiking: Snoqualmie Pass (Nelson & Bauer - Mountaineers Books)

Buy the Green Trails Kachess Lake No. 208 map

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Pete Lake

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