South Twin Sister

Alpine Climb on South Sister via Green Creek Arete and the NE Ridge Join us for a classic alpine climb in the Twin Sisters Range on South Twin via the Green Creek Arete route! This 3 or 4-day adventure offers climbers the chance to experience a gem of the North Cascades with 2-3 nights on the mountain, providing ample time to enjoy and explore. Highlights of the Expedition Classic Green Creek Route: A local classic climbing route on diorite rock whic is very grippy. Ascend up 3rd & 4th class rock ridges and a crux pitch of 5.5 YDS up onto the Sisters Glacier. Then climb the moderate snow before traversing on to South Sister NE Ridge then scramble class 3 to the top. Flexible Itinerary: Options for weather delay or additional climbs on nearby routes such as the North Ridge of Cinderella or East Ridge of Little Sister. Intimate Group Sizes: Climb with a 2:1 guest-to-guide ratio for personalized safety focused attention. Why Choose Our South Twin Sister Climb? Maximized Mountai