Rocky Mountain Elk, Rocky Mountain Elk bull, bull elk, elk, North America, Rocky Mountains, animal, animals, antler, antlers, bull, fauna, hoofed mammal, hoofed mammals, vertical, large, leesonphoto, male, males, mammal, mammals, mountain, mountains, rack, trophy, wapiti, wild, wildlife, Wyoming, montana, Yellowstone, Yellowstone National Park, Cervus canadensis nelsoni, Cervus canadensis