yellowstone`s grand loop road passes through the golden gate surrounded by steep and colorful volcanic rocky walls.

accomplishment ascent bridge canyon cliff clouds cloudy concrete corpsofengineers crags curving curvy descent engineering evergreens forest gold golden goldengate goldengateofyellowstone goldenrock grandcanyon grandlooproad highway landscape mammoth mountains nationalparks nature pass passage passageway peaks pines plateau road roadway rock rocky route shadows slopes steep trees viaduct wyoming yellow yellowrock yellowstone yellowstonenationalpark