Two of the six subspecies of elk are extinct in North America.
Picture from NPS
Most of the elk that survived early settlement and over hunting live in the Rocky Mountains, and are referred to as Rocky Mountain Elks. Elks that live in the Coastal Pacific Northwest are Roosevelt's Elks, which are similar to Rocky Mountain Elks, but have smaller antlers. Tule Elk are unique to California, and Manitoban can be found in the Great Plains area. Elks that lived East of the Mississippi, Eastern Elks, are now extinct. As are Merriam's Elk which lived in the Southwest and Mexico.