A series of prehistoric groups of the northern California coast, Oregon, Washington, British Columbia, and southeastern Alaska, with origins in the Fraser River delta and clearly established by 1000 BC. Their subsistence was based on hunting and gathering of riverine and marine food sources (mollusks, salmon, halibut, sea mammals). Characteristics in the archaeological record include bone and slate hunting tools, stone effigy carving, and woodworking tools. Totem poles and elaborately carved long houses are still a cultural feature in the area.