The Top 5 Natural Monuments around Illana
Illana’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 5
beautiful natural monuments around Illana. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!
beautiful natural monuments around Illana. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!
Last updated: November 17, 2025
Alcarrias of the Tajo: Gypsum, Marl, and Esparto
Highlight • Natural Monument
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 …
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Quejigo del Robledal
Highlight • Natural Monument
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 …
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Cueva de la Sima
Highlight • Cave
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 …
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La Cava archaeological site
Highlight • Historical Site
It is one of the oldest and most important deposits in the region. What you will see on your tour will fascinate you, especially when you realize that people lived there in the Bronze Age, more than 4000 years ago!
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El Hoyo Redondo Sinkhole
Highlight • Natural Monument
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.
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