HomeUSASouth DakotaCuster State ParkSylvan LakeOutletsHornsby's RockHornsby's RockLAT,LNG 43.84770, -103.56680CREATED UPDATED Edit MapShareDescription[Edit]This rock blends in with a mass of rocks that are slightly separated from the rest of the Outlets. They are across the Sunday Gulch trail to the west. Two 5.9 bolted routes are on the northwest side of the rock.2 ClimbsComing soon: New Climbs1Pestilence5.9Sport2The Way It Is5.9Sport