Ключевые слова: arid, arizona, cacti, cactus, columnar, danger, dead, death, desert, dry, felled, hot, landscape, national, natural, nature, needle, needles, old, outdoor, pattern, places, plant, plants, prickly, protected, protection, rock, rocks, rotting, saguaro, saguaros, sand, sharp, skeleton, soil, sonoran, southwest, southwestern, spines, spiny, succulent, tall, tourism, trails, trunk, usa, west, wild, wilderness,