HomeUSAWashingtonCentral-West Cascades & SeattleSkykomish ValleyThunder Mountain and Slippery Slab TowerEasy 5thtradalpineFA Dave Harrah,William Herston, Keith Rankin, Ruth Rankin, May 1947CREATED UPDATED Tick this climbDescriptionLocationProtectionRoutes in Thunder Mountain and Slippery Slab Tower1Slippery Slab Tower NE FaceEasy 5thTrad · Alpine