Engelmann Spruce and Subalpine Fir Zones
Confined to higher elevations to the east, this type is the counterpart of the Cascade Subalpine Forest. Varying from dense to open parklike stands of subalpine fir and Engelmann spruce (Picea engelmannii), the zone has occasional intrusions of subalpine larch (Larix Iyallii) and whitebark pine (Pinus albicaulis) at higher elevations and Douglas-fir at lower elevations.