The Subalpine Fir or Rocky Mountain Fir (Abies lasiocarpa) is a western North American fir, native to the mountains of Yukon, British Columbia and western Alberta in Canada; southeastern Alaska, Washington, Oregon, Idaho, western Montana, Wyoming, Utah, Colorado, New Mexico, Arizona, northeastern Nevada, and the Trinity Alps in northwestern California in the United States. It occurs at high altitudes, from 300–900 metres (980–3,000 ft) in the north of the range (rarely down to sea level in the...