 The city of Quesnel may be considered to be part of the Northern Interior, but it is usually conceived of as primarily being in the Cariboo, which is normally termed the Central Interior, or North-Central Interior.The Northern Interior includes Robson Valley (the upper reaches of the Fraser basin) to the southeast of Prince George as well as the Omineca District and the Bulkley and Nechako basins.The communities of the upper Skeena are sometimes referred to as being in the Northern Interior, though in cultural terms and usual usage they are part of the North Coast, which is associated in regional terms usually with the South and Central Coast and Vancouver Island.