The Twin Couloirs are two north-facing couloirs approximately 0.3 mile to the southeast of the summit of Deseret Peak. Because they face north, they hold snow well into the late spring and early summer months, suitable for snow-climbing and spring skiing. These twin couloirs are very aesthetic, with high quartzite walls on both sides. They provide a 1300 foot climb and descent.
From Exit 99 on Interstate 80 (Tooele, Stansbury):
- exit and head south on Highway 36 for about 4 miles
- turn onto Highway 138 to Grantsville
- Once in Grantsville, drive to the west side of town and turn south on 400W
- Follow signs for the Deseret Peak Wilderness
- Park at the "Loop Campground" parking (at the end of the road)
This road turns to dirt nearer to the Loop Campground, but should be suitable for all cars.
Skiing the Twin Couloirs
From the Loop Campground Trailhead, follow the trail south and shortly enter the Deseret Peak Wilderness Area. After 0.7 mile, cross a creek and find the trail intersection for the Mill Fork trail and the Dry Fork / Pockets Fork trail (also goes to South Willow Lake). Take the right fork in the trail that heads toward South Willow Lake. After 0.5 miles, you'll be at the point where the trail turns sharply to the north. If you're snow climbing, you'll likely already be on snow. Leave the trail and climb into Dry Lake Fork. Travel south on snow toward the large cirque created by Deseret Peak. The Twin Couloirs are southeast of the summit, so once you identify them, just head toward the apron below the couloirs.
From here, climb 1300 vertical feet to the top of the couloirs. The western couloir is slightly less steep and wider than the eastern couloir. The western coulior is 36 degrees, the eastern couloir is 38 degrees. I was able to skin (with some difficulty) the entire western coulior in June. Either couloir would be a really straightforward snow climb.
Route (to the top of the Twin Couloirs):
4.8 miles round trip
3239 feet elevation gain
To the summit:
5.4 miles round trip
3643 feet elevation gain
"I looked back at the summit of the mountain, which seemed but a cubit high in comparison with the height of human contemplation, were in not too often merged in the corruptions of the earth."