We're giving this page a facelift!Visit the previous versionto make edits.Peak Mountain 3Add photo Edit (TBD) Photo MapCopy LinkHomeUSACaliforniaSan Diego CountyNorth San Diego CountyMelrose BouldersJim Thoen BoulderStone Masters.V1+Dime Edge Crimping Masters AKA The Thin White Line.V3Poway Mountain Boys.V1boulderingFA Unknown?UPDATED BY vietnguyen DescriptionRoutes in Jim Thoen Boulder1West face AKA Sierra Club Route.V-easyBouldering2Southwest CornerV-easyBouldering3Thoen AreteV0Bouldering4Stone Masters.V1+Bouldering5Poway Mountain Boys.V1Bouldering 6Dime Edge Crimping Masters AKA The Thin White Line.V3Bouldering7The Golden Age Traverse.V0Bouldering