A new high resolution seafloor survey of Pribilof Canyon in the eastern Bering Sea reveals dramatic details of this undersea canyon, and provides information for improved fisheries conservation and management; in particular, provide identification of areas that are potentially hazardous for loss of commercial fishing gear. Previously, only incomplete lower-resolution data were available to describe the morphology of this world-class feature. Pribilof Canyon is one of a family of huge canyons that play a central role in supporting the rich ecosystem of the Bering Sea.