| Abstract | The Canadian Rocky Mountain national parks comprise Waterton Lakes, Banff, and Jasper national parks in Alberta, and Kootenay and Yoho national parks in British Columbia. The forested landscape is divided into montane and subalpine ecoregions (zones) based primarily on forest community physiognomy and composition. Both north-south and east-west climatic and floristic gradients affect the forests. Environmental, community, and geographical attributes of major forest categories are described for montane (Douglas-fir, limber pine, white spruce, western red cedar), lower subalpine (engelmann spruce-subalpine fir), and upper subalpine (Engelmann spruce-subalpine fir, whitebark pine, subalpine larch) old-growth forests. |