Ключевые слова: active, area, basin, beauty, blue, conservation, destinations, energy, extreme, famous, fountain, geology, geyser, heat, hot, landmark, landscape, national, natural, nature, outdoors, park, power, recreational, reserve, river, scene, scenics, spring, steam, summer, sunlight, terrain, thermal, tourism, travel, usa, vertical, view, volcanic, water, wilderness, wildlife, wonder, wyoming, yellowstone,