This study uses newly acquired high-resolution seismic reflection data to present evidence of large-scale mass transport deposits throughout the Quaternary in southern Orphan Basin located off the northern slope of the Grand Banks. Mass transport deposits are those associated with slope failure and transport as slumps, slides, debris avalanches, or debris flows. The results reveal the types of mass transport deposits on the Basin slope & floor and their depositional pattern from the early Pleistocene to the present.