The Rocky Mountain Elk
The Rocky Mountain elk was not an animal of the plains that retreated to the mountains because of the encroachment of man. Elk always lived in the Rocky Mountains. Rocky Mountain elk currently inhabit the Rocky Mountains from central British Columbia and Alberta through Idaho, Montana, eastern Washington, eastern Oregon, northeastern Nevada, Utah, Arizona, New Mexico, Colorado, Wyoming, the western portions of North and South Dakota. There are scattered populations of transplanted animals in many other states; western Nebraska, northeast Minnesota and northern Michigan among them. The current North American elk population is about 800,000. The largest herd of elk lives in Yellowstone National Park. It consists of about 30,000 elk that gather together from about 7 herds to spend the summer.
North American elk were once considered a species separate from the Eurasian red deer. Scientists now consider the North American elk and Eurasian red deer to be the same, though distinctions between the two live on in the language. The term wapiti applies to the North American elk and to the wapiti-like red deer subspecies in Eastern Asia where the males resemble the North American elk in their antler structure and mating calls.