Boston Basin lies within the heart of Washington's stunning North Cascades. The big attraction here is Forbidden Peak, particularly its West Ridge, which is included among Steck and Roper's 50 Classics. Other draws here include Sahale Peak, Boston Peak, Mount Buckner, Mount Torment, and Sharkfin Tower.
Driving directions: From Seattle, take I-5 North. Exit in Burlington for WA 20 East, which becomes the North Cascades Highway. Drive about 50 miles east to Marblemount. Make a right in Marblemount onto Cascade River Road. Drive 21.7 miles (according to the guidebook) on Cascade River Road. There's a small pullout on your left directly opposite Johannesburg Mountain. Park here. If you've gone to the end of the road, you've gone too far.
10 Total Routes
Browse More Classics in Boston Basin
Mountain Project's determination of some of the classic, most popular, highest rated routes for Boston Basin:
Torment-Forbidden Traverse 5.6 4c 14 V 12 S 4b Steep Snow Trad, Snow, Alpine, Grade IV Mount Torment
Featured Route For Boston Basin
West Ridge 5.6 4c 14 V 12 S 4b Mod. Snow WA : Northwest Region : ... : Forbidden Peak
The West Ridge of Forbidden is included amongst the 50 Classic Climbs of North America. Expect stunning views, solid rock, an unforgettable summit, and fickle weather.From Boston Basin, ascend scree slopes and gullies, aiming for the snowfield and the obvious West Ridge Couloir. Ascend the snowfield to the base of the West Ridge Couloir. In early and mid-season, the best option to gain the ridge itself is to ascend the West Ridge couloir (about 40-45 degree snow). Climb the couloir until it ...[more] Browse More Classics in WA
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