HomeUSAWashingtonCentral-West Cascades & SeattleSkykomish ValleyIndex** Bouldering at IndexGalena Major BoulderingMammoth BouldersMammoth BouldersLAT,LNG 47.85524, -121.45951CREATED UPDATED Edit MapShareDescription[Edit]No description available. Be the first to contribute!Add description 0 ClimbsComing soon: New Climbs