West Fork Teanaway River

Snoqualmie RegionBest Jul–Oct

A long, narrow canyon trail along the West Fork Teanaway, threading between cliffs, old growth, and high-bench wildflower meadows.

19.2 miDistance
2,799ftElevation
5,751ftHigh Point
Out & BackRoute
12h+Drive
moderateCrowds
RiverOld GrowthFair in rain

About This Trail

The West Fork Teanaway River trail follows the river up its narrow canyon for nearly ten miles one way, gaining twenty-eight hundred feet across the route. The grade is gradual, but the canyon walls press in close — the trail benches itself high above the water in places, with cliff drops on the river side and rock outcrops on the inside. Old-growth ponderosa pine and Douglas fir fill the lower river bench; subalpine larch and meadow take over above five thousand feet.

This is a classic Teanaway route — east-side dry country with the volume of an Alpine Lakes trip and a fraction of the foot traffic. Established campsites along the river make this a viable two-night out-and-back. Several river crossings demand attention through July when snowmelt is still pushing the flow; later in summer the fords drop to easy stepping-stone work.

The drive in does its own filtering. Forest Road 4305-113 turns rough on the last five miles — winding, slippery when wet, and unforgiving to passenger cars. Bring a vehicle that can handle ruts. Northwest Forest Pass at the trailhead. Best season is mid-July through early October once the high crossings settle.

Seasonal Highlights

JulRiver crossings settle, lupine and balsamroot in the lower meadows
AugStable weather, paintbrush and aster at the upper benches
SepLarches color the high reaches, cooler nights for camping
OctPeak larch season, but watch for early snow on the upper trail

Astronomy

MoonWaning Gibbous (70%)
Stargazingexcellent

Trail Conditions

Scorecard

strikingBeautyA narrow east-side canyon with old-growth pine giving way to upper meadow.
Type 1.7Fun
2.5/5Difficulty
4/5Wildness
2.5/5Exposure
3.5/5Reward
4/5Effort
quietCrowds

Rough access road and long mileage filter out casual visitors. Most weekends see only a handful of parties.

Safety & Considerations

Today's Hazard

  • Strong sun — sunscreen, hat, and sunglasses recommended; water reflection adds glare near the lake

Persistent Hazards

  • Multiple river crossings — high through July with snowmelt
  • Cliff exposure on benches above the river
  • Rough access road slick when wet
  • Long mileage with no quick exit

Getting There

Google MapsApple Maps
Road Access

High-clearance vehicle recommended

Parking

Trailhead at the end of Forest Service Road 4305-113. Northwest Forest Pass required. Last five miles of road are rough; high-clearance helps.

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