HomeUSACaliforniaSan Diego CountyNorth San Diego CountyOld CastleSlabs, TheUpper Terrace of Lower SlabUpper Terrace of Lower SlabLAT,LNG 33.25409, -117.12369CREATED UPDATED Edit MapShareDescription[Edit]No description available. Be the first to contribute!Add description 3 ClimbsComing soon: New Climbs1Splitter Crack 15.8Trad2Splitter Crack 3 (aka The Lightening Bolt Crack)5.10a/bTrad3Splitter Crack 25.8+Trad