Ключевые слова: adventure, america, american, animal, big, bison, brown, buffalo, bull, cow, crossing, famous, field, fur, geyser, grass, herd, horn, lamar, land, landscape, male, mammal, montana, mountains, national, native, nature, north, outdoors, park, plains, prairie, river, steam, strong, summer, usa, vacation, valley, water, west, wild, wildlife, wyoming, yellowstone,