Ключевые слова: adventure, america, animal, bison, buffalo, cloudy, discover, distance, ecosystem, environment, evergreen, explore, family, glacial, grass, green, group, healthy, herd, hills, lake, lakebed, landscape, large, laying, marsh, mountains, natural, nature, outdoor, outside, place, resting, river, scenic, season, sky, spring, steep, summer, trees, vacation, valley, view, visit, water, wetlands, wyoming, yellowstone national park,