Sharkfin Tower (8120+ ft) a Major Alpine Crag, part of the Boston Peak massif located in the Northwestern Cascades region
Sharkfin Tower Att via Boston Basin—Quien Sabe Glacier—Southwest Gully (Thunder Mountains, WA)
Trip Date: July 8-11, 2025 Boston Basin Hiking & Climbing Trip Lower Boston BasinUpper Boston BasinQuien Sabe GlacierSharkfin...