HomeUSASouth DakotaCuster State ParkSylvan LakeSylvan Lake BoulderingNortheast Gully BouldersUndertaker BoulderUndertaker BoulderLAT,LNG 43.84625, -103.56438CREATED UPDATED Edit MapShareDescription[Edit]Very close to lake trail with good rock quality and a nice landing1 ClimbsComing soon: New Climbs1The UndertakerV2+Bouldering