North American deer includes three species: ELK (Cervus canadensis), WAPITI (Cervus elaphus) and MOOSE (Alces alces). ELK, also known as WAPITI, are the largest species of deer in North America and can be found in western North America. WAPITI are the second largest species of deer in North America and can be found in the Rocky Mountains and parts of Canada. MOOSE are the largest species of deer in North America and can be found in northern parts of the continent. All three species of North American deer are important to the ecology of the region and are hunted for their meat and antlers.