일라나‬에서 가장 멋진 ‪5‬개의 천연기념물

The Cueva de la Sima is an old quarry of gypsum and building materials that was sometimes used by shepherds as a cattle corral. The place is a circular pit about fifteen metres deep, with a small shelter on one side, and should not be confused with the nearby Cueva de Pedro Fernández or Sima de las Yeseras, a gallery of several kilometres with remains from the Manchego Bronze Age that is closed to the public.

The Tajo River basin in the province of Madrid is a basin of limestone, gypsum, marl and sandstone sediments. The limestone is hard and has resisted erosion over time, forming large plateaus and agricultural wastelands known as alcarrias. On the other hand, the gypsum and marl are much softer materials and environmental precipitation has created a curious landscape of slopes, cliffs and test hills that precipitate dissolved salts to the bottom of the plains, determining the reliefs, textures and highly specialised plant species, with numerous peninsular endemic species.

The Robledal de Brea is a valuable ecosystem of holm oak forests from La Mancha, with holm oaks, gall oaks and oaks with centuries-old specimens and great environmental quality due to their good state of conservation. At the entrance to the Monte is the Quegijo del Rebledal, tree number 315 in the catalogue of Singular Trees of the Community of Madrid, it is twenty metres high, three metres in circumference and has an estimated age of two hundred years.

The Torca del Hoyo Redondo is a depression or sudden subsidence of the land, typical of soils of calcareous origin, very common in the province of Cuenca.