Ciudad Encantada de Bolnuevo, Natural monument and rock formation in Bolnuevo, Spain.
Ciudad Encantada de Bolnuevo is a sandstone rock formation along the coast near Mazarron with distinctive vertical pillars and mushroom-shaped formations. These structures developed through prolonged erosion caused by waves and wind carving into the soft stone layers.
The rock layers date to the Pliocene period around 4.5 million years ago, forming in an ancient marine environment. Microfossils embedded within reveal the presence of sea life during that distant geological time.
The rock formations serve as an educational site where geologists and students examine the effects of natural weathering processes on coastal landscapes.
The site is located about five kilometers from Mazarron and is freely accessible year-round. Visitors can explore on foot and take advantage of nearby Mediterranean beaches for additional coastal enjoyment.
The stones contain high concentrations of clay and sand that give them their distinctive yellow coloring. This composition makes them particularly susceptible to erosion, causing the fantastical shapes to continuously evolve and transform.
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