Sourdough Gap

An easy, 7 mile round trip day hike with 1,570 ft in elevation gain beginning at Chinook Pass and passing Sheep Lake near Mount Rainier. This trail connects with the Crystal Lakes trail and the two can be combined for a glorious alpine lake outing with a car shuttle.

Getting There

From Enumclaw drive east on SR-410 (Chinook Pass Highway) to Chinook Pass. Just east of Tipsoo Lake, turn left (north) into a small trailhead parking lot on the north side of the highway. The trailhead is at the back of the lot, behind the restrooms. If the parking lot is full, return to the Tipsoo Lake parking lot at the pass and hike the 0.25-mile trail around the lake to the lower lot and the Pacific Crest Trail Trailhead.

on The Trail

Sheep Lake (5,800 ft)

3.6 miles round trip, 400 feet of elevation gain

The trail traverses above SR-410 before climbing gently into the Sheep Lake Basin. Enjoy great views of Mount Rainier and Naches Peak along the way.

Sourdough Gap (6,400 ft)

6.0 miles round trip, 1,000 feet of elevation gain

Hike the Pacific Crest Trail (PCT) for a 1.8 miles until you reach Sheep Lake. Continue passing through forests and meadows for another 1.2 miles to reach the gap and fabulous views of Mount Rainier. Be sure to scramble to northwest side of the gap for the best views. Look southwest to Mount Rainier'a Emmons Glacier. About 0.25 mile north of Sourdough Gap, enjoy views east into the meadows of upper Morse Creek with the blue pool of Placer Lake in the center of the valley.

Chinook Pass to Crystal Lakes

7.0 miles one-way, 1,000 feet of elevation gain

 The PCT at Sourdough Gap connect to the Crystal Lakes Trail. These two trails can be combined for a glorious alpine lake outing with a car shuttle.

  • Suitable Activities: Day Hiking
  • Seasons: July, August, September, October
  • Weather: View weather forecast
  • Difficulty: Easy
  • Length: 6.0 mi
  • Elevation Gain: 1,570 ft
  • 6,400 ft
Map
  • Green Trails Mount Rainier Wonderland No. 269SX
  • Green Trails Bumping Lake No. 271
  • Green Trails Mt Rainier East No. 270
Activities

Upcoming Activities

TAC PAT - Activity - Sheep Lake

Youth Youth activity: Pathfinders
Monthly field trips that enable Pathfinders to practice newly learned skills.
Difficulty: Easy
Sat, Aug 27, 2022 - Sun, Aug 28, 2022
No Prerequisites
11 participants
Registration closes Aug 25
Tacoma Branch

September Hikes: 4 to 8 miles, 750 to 2,000 feet gain - Sourdough Gap

Day Hiking Field trip: GoHike: Beginner Hiking Series
This hike counts toward your monthly required GoHike course hike for September.
Difficulty: Easy
Tue, Sep 6, 2022
No Prerequisites
11 participants
Registration opens Aug 12
Foothills Branch

September Hikes: 4 to 8 miles, 750 to 2,000 feet gain - Sourdough Gap

Day Hiking Field trip: GoHike: Beginner Hiking Series
This hike takes us along the PCT to Sheep Lake and up to Sourdough Gap
Difficulty: Moderate
Sat, Oct 1, 2022
No Prerequisites
7 participants
Registration opens Aug 12
Foothills 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.

  • Sheep Lake
  • Sheep Lake (Chinook Pass)
  • Chinook Pass to Crystal Lakes
  • Sourdough Gap: Chinook Pass to Crystal Lakes
Resources

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