Ключевые слова: abstract, adventure, beautiful, brown, canyon, clay, cliff, desert, dirt, dry, earth, environment, erosion, field, fossil, gray, hill, hills, land, landscape, material, mineral, mining, mountain, mountains, mud, national, natural, nature, orange, outback, outdoor, red, rock, rocky, sand, sandstone, scenery, scenic, sky, soil, soil erosion, stone, structure, surface, terrain, texture, tourism, travel, yellow,