The Chilcotin Plateau Basalts are a north-south range of volcanoes in southern British Columbia running parallel to the Garibaldi Volcanic Belt. The majority of the eruptions in this belt happened either 6-10 million years ago or 2-3 million years ago, although there have been some slightly more recent eruptions (in the Pleistocene).
The eastern part of the Yukon plateau, bounded on the north and east by the Ogilvie and the Selwyn mountains, respectively, and on the south by the Liard and Stikine plateaus, is somewhat higher and colder than the Section to the west.
To the south and west it is bounded by highland moss barrens, on the east by the poorer forests of the Avalon peninsula, and on the north by a narrow maritime strip \ differentiated by a contrasting prominence of white spruce.
The forests of the relatively low-lying land on the northern half of the Nechako plateau are transitional in composition between the montane and the subalpine forests.