Mount Washington (Snoqualmie)

A strenuous, eight mile hike with 3,200 ft in elevation gain. Starting in second growth forest, hike up to a road turned trail through an open area to a ridge summit with views of Chester Morse reservoir, Mount Rainier and the peaks on the north side of Snoqualmie Valley. Consider adding Change Peak and/or Greenway Mountain, two lesser known peaks near Mount Washington, to your trip. Hike to just one, any two or all three of them.

getting there

From eastbound I-90, take exit 38, turn right, cross the river, turn right again and park at the Twin Falls/Olallie state park parking lot. There are bathrooms at trailhead.

on the trail

Mount Washington (4,405 ft)

8 miles round trip, 3,200 feet of elevation gain

Hike south then west up the short connector trail to the Iron Horse Trail, then merge onto a wide gravel road (stay right here). The road intersects another road (the Palouse to Cascades State Park Trail formerly John Wayne Pioneer Trail/Iron Horse Trail).  Continue west (right) here and then take the next unmarked trail left (south) about 0.3 miles from the trailhead, marked by a small rock cairn if it's not buried in the snow (skip the light sensor access trail, it's just past that).  This is the start of the Mount Washington Trail.

The trail climbs steeply to the southwest, then eases to a moderate grade with crossings of  several small creeks. It switchbacks through old growth forest with occasional views to the north. Less than a mile from the trailhead, the trail passes under a small cave now used as a climbing wall, with several anchors on the overhang and sometimes people hanging from them!

The trail then veers right at a hand-carved wooden sign that reads “MT WA.” At roughly 1.6 miles from the trailhead, a small clearing noted on small maps as “Owl Hike Spot” provides views of Rattlesnake Ledge to the west. Continue climbing and stay right at the junction with the Great Wall Trail at 2.0 miles, where you will first see the summit. Here the grade moderates, leaving the forest and turning sharply east toward another unmarked trail junction. Again, stay right on the main path west, climbing in long switchbacks.

The route finally breaks out into alpine meadow  at about the three mile mark (flowers here in the early summer). When you reach a sharp switchback, you've reached the boundary between public land and the Cedar River Watershed, the water supply for the city of Seattle.   Curve around a southwest-facing slope and climb north on a gentle ridgeline to the summit of Mount Washington.

Change Peak (4,340 ft)

8 miles, 3,000 feet of elevation gain

From the Great Wall Trail, ascend the southwest ridge.

Greenway Mountain (4,460 ft)

Follow ridgeline logging roads from Change Peak until you can scramble to Greenway Mountain's summit. 

information FOr leaders

Permit information

As of 2017, the Snoqualmie Ranger District considers Mountaineers trips and courses to be "nominal use". Leaders should print and copy this designation letter to show rangers they may see on trail.

  • Suitable Activities: Day Hiking
  • Seasons: June, July, August, September, October, November
  • Weather: View weather forecast
  • Difficulty: Strenuous
  • Length: 8.0 mi
  • Elevation Gain: 3,200 ft
  • 4,405 ft
Map
  • Green Trails Bandera No. 206
  • USGS Chester Morse Lake
  • Green Trails Mount Si NRCA No. 206S
Activities

Upcoming Activities



Conditioning Hikes (one required, multiple are optional) - Change Peak

Day Hiking Field trip: Alpine Scrambling Course
After work : Scramble conditioning hike. Destination is Change peak. This will not be a
Difficulty: Strenuous
Thu, Mar 19, 2020
No Prerequisites
2 participants 1 instructor
Registration closes Mar 17
Seattle Branch

CHS 2 Pacing Hike - Mount Washington (Snoqualmie)

Day Hiking Field trip: Conditioning Hiking Series
This will be a quick hike up to what's known as the Owl Lookout on
Difficulty: Moderate
Sat, Mar 21, 2020
No Prerequisites
11 participants
Registration opens Mar 11
Seattle Branch

Day Hike - Mount Washington (Snoqualmie)

Day Hiking Trip
After-work conditioner. Hike up as fast as you can, regroup, and hike down together. Aiming
Difficulty: Strenuous
Thu, Apr 2, 2020
No Prerequisites, Leader's Permission Required
0 participants 2 leaders
Registration closes Mar 31
Everett Branch

Conditioning Hikes (one required, multiple are optional) - Mount Washington (Snoqualmie)

Day Hiking Field trip: Alpine Scrambling Course
Seattle Alpine Scramble Course Conditioning Hike
Difficulty: Strenuous
Tue, Apr 7, 2020
No Prerequisites
5 participants 0 instructors
Registration closes Apr 5
Seattle Branch

CHS 2 Hike - Mount Washington (Snoqualmie)

Day Hiking Field trip: Conditioning Hiking Series
CHS hike led at a CHS 2 pace (2.0-3.0 mph)
Difficulty: Strenuous
Sat, May 16, 2020
No Prerequisites
10 participants
Registration opens Apr 22
Seattle Branch

CHS 1 Hike - Mount Washington (Snoqualmie)

Day Hiking Field trip: Conditioning Hiking Series
CHS 1 Go-Getter hike to Twin Falls and the summit of Mt. Washington led at
Difficulty: Strenuous
Mon, Jun 15, 2020
No Prerequisites
10 participants
Registration opens May 27
Seattle Branch
Trip Reports
Titles

This is a list of titles that represent the variations of trips you can take at this route/place. This includes side trips, extensions and peak combinations. Not seeing a title that fits your trip? Log in and send us updates, images, or resources.

  • Change Peak
  • Greenway Mountain
  • Mount Washington & Change Peak
  • Change Peak & Greenway Mountain
  • Mount Washington & Greenway Mountain
  • Mount Washington, Change Peak & Greenway Mountain
Resources

There are no resources for this route/place. Log in and send us updates, images, or resources.

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