Ключевые слова: arch, arched, architecture, blue, bridge, built structure, canyon, connect shore, connection, construction, deep, desert, engineering, gorge, group of objects, horizon, horizontal, industrial, liffs, metal, no people, northwest, object, oregon, outdoors, perspective, pillars, powerful, ravine, rivets, road bridge, roadbed, rocks, rocky, safe, safety, sectional, semicircle, side view, sky, spectacular, steep, structures, support, supports, together, transportation, truss, trustworthy, urve,