Ключевые слова: arid, autumn, badlands, bardenas reales, barren, basque country, castildetierra, clouds, crest, desert, dry, eroded, erosion, europe, famous, formation, geology, ground, hill, horizon, journey, land, limestone, mount, mountain, nature, navarra, people, place for text, province, range, relief, ridge, rock, rough, sand, sandstone, scenic, sky, spanish, textured, unesco, wild, wilderness, yellow,