HomeUSASouth DakotaCuster State ParkSylvan LakeSylvan Lake BoulderingBackside Damn BoulderBackside Damn BoulderLAT,LNG 43.84625, -103.56438CREATED UPDATED Edit MapShareDescription[Edit]The Boulder on the backside of the Sylvan lake damn offers the some if not the hardest problems in the Hills. Chuck Fryberger first climbed homestar (v11) and King Of Town (v13/v14) was first done by Matt Tschol today it remains unrepeated.3 ClimbsComing soon: New Climbs1Only The Good Die YoungV7+Bouldering2MarzipanV5Bouldering3HomeStarV11Bouldering