From Boston Basin, ascend Quien Sabe Glacier to gully beneath ridge. Gain ridge from gully, climb ridge to summit. Descend route with rappel and downclimbing.

Activity Notes

Part of a multi-part activity.

https://mazamas.org/multi-activity/1136/

Other Information
Driving Distance from Portland 300 miles
Driving Time from Portland 6 hours
Expected Duration Car to car in two or more days
Relevant Maps USGS of Boston Basin, Boston Peak, Forbidden Peak.
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