The Chilcotin Ranges are a subdivision of the Pacific Ranges of the Coast Mountains (in some classifications they are a separate subdivision). They lie on the inland lea of the Pacific Ranges, abutting the Interior Plateau of British Columbia. Their northwestern end is near the head of the Klinaklini River and their southeast end is the Fraser River just north of Lillooet; their northern flank is the edge of the Plateau while their southern is the north bank of the Bridge River. In some reckonings they do not go all the way to the Fraser but end at the Yalakom River, which is the North Fork of the Bridge.