Except where noted above, subalpine fir is a major component of high elevation Pacific Northwest forests. In the north, its range extends from the high mountains of central British Columbia, western Alberta, northeastern Washington, northeastern Oregon, Idaho, Montana, to the Wind River Mountains of western Wyoming. In Utah, it commonly occurs in the Uinta and Wasatch Mountains, but is less abundant on the southern plateaus. The range extends from southern Wyoming, through the high mountains of Colorado and northern New Mexico, and westward through northeastern Arizona to the San Francisco Mountains. Subalpine fir is a major component of the high-elevation forests of the Rocky Mountains.
Subalpine fir is found primarily in the subalpine zone of the Rocky Mountains up to timberline.
Silvics of North America, U.S. Forest Service . CalFlora Database . Climate-Vegetation Atlas, U.S. Geological Survey . Flora of North America . Gymnosperm Database .