Ключевые слова: adventure, america, canyon, cliff, danger, discover, dynamic, elevation, environment, erosion, evergreen, explore, falls, famous, force, green, lower falls, mist, natural, nature, outdoor, outside, people, place, power, pristine, protected, rapids, resource, rock, rugged, scenic, snow, spray, steep, tourism, tourists, travel, trees, uncle toms trail, viewpoint, walls, water, white, wyoming, yellowstone national park, yellowstone river,