Cosho is the western most of the four peaks making up 'Ragged ridge' along with Mesahchie, Katsuk and Kimtah. Strong climbers do it on a high route, fast becoming a classic, that includes the other three peaks of Ragged Ridge.
Old guys like me have to do these peaks one at a time. For Cosho I went up the rib to the left of Peak 8120. There was an interesting hidden ramp that bypassed a brushy cliff band just below Peak 8120.
Pictures later.
