Mount Stuart/Cascadian Couloir

A nice snow climb in late spring and early summer. Fred Becky stated: "Without a rival as the crown peak in the central Cascades of Washington" in his second Cascade Alpine Guide. Steep snow in early season - bring crampons, rockfall dangers after snow melt. Road may be closed into June. Times: 3-4 hr trailhead to camp, 5-8 hr camp to summit.


Drive on I-90 to about 1 mi east Cle Elum, then go northeast on SR 970 about 5 mi to 0.5 mi past the Teanaway River Bridge. Turn left on the Teanaway River Road and continue 23 mi to the road end parking area at 4,243 ft, about 1 mi beyond the DeRoux Campground (Forest Road 9737). Car camping is available at the DeRoux Campground and other campgrounds on the Teanaway River Road


From the parking area, hike abandoned mine road/trail for about 0.25 mi to fork in trail. Take the right fork (east) toward Longs Pass. Hike 4 mi up trail over Longs Pass (6,200 ft). Descend to base camp (4,800 ft) near Ingalls Creek. There is no water available on the trail until you reach Ingalls Creek.


Cross log bridge at Ingalls Creek. Go east on trail about 0.25 mi to meadow. Can also camp here. Follow climbers trail up meadow and the Cascadian Couloir. Work up the couloir toward upper snow fields of the false summit.

Taking a good look at the route when at Longs Pass will help in route finding.  There is a good picture in Cascade Alpine Guide, Vol 3 on pp. 299 & 301.

Crampons may be needed here. From false summit (9,200 ft) scramble east along left side of ridge through broken rock (Class 2-3) directly to summit (9,415 ft).


Descend the climbing route.


Seattle to Trailhead 3
Trailhead to Camp 3-4 2,000 1,400
Camp to Summit 5-8 4,600
Summit to Camp 2-3 4,600
Camp to Trailhead 3-5 1,400 2000


Standard alpine equipment and crampons.


  • This is a very long climb - be in very good physical condition.
  • Use caution on the slopes below false summit - steep snow early in the year and loose rock later in the year.
  • The presence of steep snow on the upper slopes makes this trip worthy of Basic Alpine Climb when done in the early season.
  • The Teanaway River Road may be snowed in into June.
  • Suitable Activities: Scrambling
  • Seasons: June, July, August, September, October
  • Weather: View weather forecast.
  • Difficulty: Technical 5, Strenuous 5
  • Elevation Gain: 8,000 ft
  • 9,415 ft
  • Green Trails Mt Stuart No. 209
  • Green Trails The Enchantments No. 209S
  • Green Trails Alpine Lakes East (Stuart Range) No. 208SX
  • USGS Mt Stuart
  • Red Marker
    47.435976, -120.937221
    47.4359757166 -120.937221051
  • Red Marker
    47.475224, -120.902267
    47.4752241466 -120.902266502

Upcoming Activities

Alpine Scramble - Mount Stuart/Cascadian Couloir

Scrambling Trip
3-days 2-nights
Difficulty: Technical 4, Strenuous 4
Fri, Aug 31, 2018 - Sun, Sep 2, 2018
0 participants
Registration opens Aug 13
Seattle Branch
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