Ключевые слова: abrupt, america, arid, beautiful, clean, cliff, countryside, desert, ecosystem, environment, erosion, famous, hiking, hill, imaginative, india, indian, landmark, landscape, mittens, monument, mountain, native, natural, nature, navajo, needles, nobody, orange, outdoor, places, red, reservation, reserve, route, scenic, sightseeing, sky, steep, sterile, sunset, travels, united states, usa, valley, world travel,