HomeUSAMassachusettsNorth ShoreCape AnnAgassiz Rock ReservationAgassiz RockSloper BoulderSloper BoulderLAT,LNG 42.55555, -70.70181CREATED UPDATED Edit MapShareDescription[Edit]Sloper Boulder is one single slopey block on the slabby hilltop about 250 feet from Little Agassiz.3 ClimbsComing soon: New Climbs1The ProphetV3+Bouldering2Slopey SecondsV3Bouldering3Freak My ShitV5-6Bouldering