Peak Mountain 3Add photo Edit Photo MapCopy LinkHomeUSAWashingtonNorthwest RegionHwy 20 and North Cascades National ParkNorth CascadesBoston BasinSharkfin Tower<Southeast Ridge5.0Southeast Face5.10-tradalpineFA Jim Nelson, Jim Martin, Kit Lewis, Bill Liddell, Dave Bale - 1990UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Sharkfin Tower1Southeast Ridge5.0Trad · Alpine2Southeast Face5.10-Trad · Alpine