Engelmann spruce is a typical tree of the North American Rocky Mountains. It grows between 450-3700m asl (above sea level) and forms the tree-line with, among others, white fir (Abies lasiocarpa). Lower down the mountains it forms large single species forests. Typically, it grows in moist soil of normal fertility. This spruce can become a large tree with a dense conical or narrow spire-like crown.