Ключевые слова: arid, aridity, badlands, bardenas, bars, beautiful, biosphere, buzzer, castildenierra, chalk, clay, cliff, country, craggy, desert, dry, dryland, eroded, erosion, europe, formation, geology, gorge, ground, hill, landscape, mountain, national, natural, nature, navarra, navarre, park, plateau, range, ravine, real, reserve, ridge, rough, sand, sandstone, scenic, semidesert, skirt, sky, spain, tourism, travel, tudela,