Ключевые слова: advise, advisory, alert, announce, arid, beware, blue, boulders, brush, canyon, caution, cliffs, danger, dangerous, drop, dry, edge, erosion, fall, falling, forewarning, geology, highway, hill, hillside, idaho, info, information, informative, look, loose, marker, message, notice, outcrop, outdoors, outside, overhang, placard, post, precipice, protection, recommend, recommendation, roadway, rock, rocks, rockslide, rubble, rural, scenic, sign, signal, signpost, sky, slide, steep, sunny, symbol, transportation, vehicle, warning, yellow,