Arch Rock Trail 1187

This trail connects the Pacific Crest Trail to Greenwater Lakes Trail 1176 just south of Echo lake. The entire trail is within the Norse Peak Wilderness.

Experience deep forests and rock bluffs without encountering many people along the way.  A great hike though wildflowers in season. Start at the south end of Echo Lake, take the bridge across Greenwater River and head north around the east side of Echo Lake. Your trail will join the eastern side of the trail around Echo Lake and campsite at .3 miles. Most of the elevation gain is through shady forest that opens up to views in the last 1,000 feet. At mile 2.4 you will find a campsite and creek. The trail connects with Pacific Crest Trail 2000 at mile 3.1. On a clear day see Mt. Rainier and the Olympic mountains in the distance along with the entire Eastern Cascades.

Washington Trails Association

At a Glance

Open Season: July
Usage: Light
Best Season: Summer-Fall
Busiest Season: Summer
Restrictions: Wilderness regulations apply. Dogs must be on a leash. Use established rings for campfires and stay on established trails.
Closest Towns: Greenwater, Washington
Passes: A valid Recreation Pass is required at Corral Pass Trailhead and  Greenwater Lakes Trailhead.
Operated By: US Forest Service
Information Center: Check current conditions or call Snoqualmie Ranger District, Enumclaw Office at 360-825-6585.

General Information


You can access the Arch Rock Trail from the Greenwater Trail #1176 via Greenwater Road #70 or Corral Pass Road #7174.

Access to Greenwater Trail #1176 Trailhead: Drive east on State Highway 410 from Enumclaw 20.3 miles to Greenwater Road #70. Turn left (north) onto Road #70 and follow 9.6 miles to trail sign. Turn right onto Road #7033, follow for 0.5 mile to trailhead on right side of road. Travel Greenwater Trail #1176 for 7.6 miles to the south end of Echo Lake and beginning of Arch Rock Trail #1187.

Access to Corral Pass Trailhead: Drive east on State Highway 410 from Enumclaw 31.6 miles to Corral Pass Road #7174. Turn left (east) on Road #7174 and follow 6.7 miles. Trailhead is on the left side of road just before a large developed parking area. A pit toilet is located at the trailhead. Travel Greenwater Trail #1176 for 5.0 miles to the south end of Echo Lake and beginning of Arch Rock Trail #1187.

General Notes:


  • Green Trails  Greewater 238
  • USGS 7.5', Suntop
  • Snoqualmie Ranger District

Recreation Map

Map showing recreational areas. Map Information


Day Hiking

Map: USGS 7.5', Lester SW

Fire Information Use established rings for campfires.
Elevation desc Beginning elevation of 3900 feet at junction with Greenwater Trail #1176. Ending elevation of 5950 feet at junction with Pacific Crest Trail #2000.
Difficulty Level: More Difficult

Horse Riding

Recreation Areas

Recreation Activities

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  Area/Length : 
3.1 Miles

  Latitude : 

  Longitude : 

  Elevation : 
3,900 feet - 5,950 feet