East of the range is the Rocky Mountain Trench, in this region largely the path of the upper Fraser River (including the section known as the Grand Canyon of the Fraser which is not to be confused with the better-known Fraser Canyon nearer Vancouver). To the west the range verges with the Cariboo Plateau through an intermediary foothill area known as the Quesnel Highland. Northwestwards the range drops to the Willow River area of the Nechako Plateau, which lies around Prince George. South of the range, northeast of Clearwater a plateau-like mountainous area between the range and the North Thompson River is part of the Shuswap Highland, which crosses the North Thompson and continues into the Shuswap Lake area.