HomeUSACaliforniaSan Diego CountyNorth San Diego CountyOld CastleSlabs, TheUpper Terrace of Lower SlabSplitter Crack 25.8+5.10a/btradFA unknownUPDATED BY vietnguyen Tick this climbDescriptionRoutes in Upper Terrace of Lower Slab1Splitter Crack 15.8Trad2Splitter Crack 25.8+Trad3Splitter Crack 3 (aka The Lightening Bolt Crack)5.10a/bTrad