Ключевые слова: abstract, archaeological, archeology, argentina, background, balls, brown, canyon, cave, cavern, closeup, detail, dry, eroded, erosion, geological, geology, hill, holes, jurassic, la rioja, material, mountain, natural, nature, old, pattern, pitted, prehistoric, red, rock, rock face, rock wall, rocky, rough, sand, sandstone, sea, sedimentary, sedimentary rock, sedimentary rocks, stone, surface, tectonic, tectonic plates, texture, textured, tunnel, wall, weathered,