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Boston Basin

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Aiguille de l'M 
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Boston Basin  


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Elevation: 6,000'
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Administrators: Peter Franzen, Jon Nelson, Micah Klesick, Kristine Hoffman (sitewide)
Submitted By: Mike McL on Jun 3, 2009
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Description 

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.

The objectives here are truly alpine, and most require some snow and/or glacier travel. Be prepared for inclement weather. This is the Cascades, right?

If you're not going car-to-car, permits are required to camp in Boston Basin.

For permit information, contact:

nps.gov/noca/planyourvisit/wil...

Wilderness Information Center
7280 Ranger Station Road
Marblemount, WA 98267
Phone: (360) 854-7245

Fred Beckey wrote the definitive three-part guide to the Cascades. The Boston Basin area is covered in Volume II. Jim Nelson's and Peter Potterfield's "Selected Climbs in the Cascades" (Volumes I and II) is also a great series.

Getting There 

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.

The approach to Boston Basin starts directly from the parking pullout. After a short while, the trail climbs very steeply uphill and is very eroded. Stay on the trail, crossing several streams. Continue switchbacking uphill until out of the trees. Boston Basin lies at about 5700' . Campsites and a composting toilet (best crap you'll ever take) are located in Boston Basin. Several options for campsites are available.

Climbing Season



Weather station 12.3 miles from here

11 Total Routes

['4 Stars',2],['3 Stars',7],['2 Stars',2],['1 Star',0],['Bomb',0]
['<=5.6',8],['5.7',0],['5.8',1],['5.9',0],['5.10',1],['5.11',0],['5.12',0],['5.13',0],['>=5.14',0],['',0],['<=V1',0],['V2-3',0],['V4-5',0],['V6-7',0],['V8-9',0],['V10-11',0],['V12-13',0],['>=V14',0]

The Classics

Mountain Project's determination of some of the classic, most popular, highest rated routes for Boston Basin:
North Face   Steep Snow     Snow, Alpine, 1300'   Mount Buckner
Quien Sabe Glacier   4th 1 2 I 2 M 1b Easy Snow PG13     Snow, Alpine   Sahale Peak
Southeast Ridge   5.0 2- 4 I 6 MM 1c     Sport, Alpine, 3 pitches, 200'   Sharkfin Tower
Torment-Forbidden Traverse    5.6 4c 14 V 12 S 4b Steep Snow     Trad, Snow, Alpine, Grade IV   Mount Torment
West Ridge   5.6 4c 14 V 12 S 4b Mod. Snow     Trad, Snow, Alpine, 1500'   Forbidden Peak
East Ridge Direct   5.8- 5b 16 VI- 14 VS 4c     Trad, Alpine, 6 pitches   Forbidden Peak
Browse More Classics in Boston Basin

Featured Route For Boston Basin
Looking down towards Moraine lake from the top.

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

Photos of Boston Basin Slideshow Add Photo
Boston Basin
Boston Basin
Early morning views from Boston Basin
Early morning views from Boston Basin
Morning light on Johannesburg Mountain from below ...
Morning light on Johannesburg Mountain from below ...
Camp overlooking Boston Basin.
Camp overlooking Boston Basin.
Approaching Boston Basin.  Forbidden Peak lies abo...
Approaching Boston Basin. Forbidden Peak lies abo...
Panoramic view of Boston Basin from the trail.
Panoramic view of Boston Basin from the trail.
Campsites at Boston Basin.
Campsites at Boston Basin.
Some very cool igneous and mostly metamorphic geol...
Some very cool igneous and mostly metamorphic geol...

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