Ключевые слова: arch, architecture, area, arizona, artificial, beautiful, beauty, bridge, canyon, cliff, creek, day, daylight, daytime, dropoff, escarpment, exploration, explore, federal, formation, historical, iron, landmark, landscape, manmade, metal, metallic, monument, outdoor, pedestrian, place, precipice, railroad, ravine, river, road, roadway, route, state, steel, street, structure, thoroughfare, touring, tourism, tourist, transportation, travel, valley, vehicle,