Ключевые слова: abstract, attraction, background, beautiful, block, brown, cambrian, canyon, cleft, cliff, closeup, crack, cross, design, dirt, earth, erosion, formation, fossil, geological, geology, gray, green, ground, horizontal, layer, layered, marble, material, mineral, mining, natural, nature, old, pattern, permian, quarry, rock, rough, sandstone, section, sedimentary, soil, solid, stone, structure, surface, texture, textured, tourist,