Ключевые слова: america, arch, architectural, architecture, attraction, base jumping, blue, blue sky, bridge, canyon, civil engineering, clear, cliff, cloudless, engineering, geology, gorge, green, high, highway, ibperrine, idaho, jumping, landmarks, landscape, lava rock, metal, morning, outdoors, perrine, perrine bridge, recreation, river, road, sky, snake river, snake river canyon, span, sports, stone, structure, summer, transportation, travel, trees, truss, truss arch, truss arch bridge, twin falls, water,