The Dolmen of La Navalito proves, that the area around Lunbrales was already inhabated, thousands of years, before the Vettones built the "Castro of Las Merchanas" that was inhabited from the 2nd century BC on.

At the beginning of the 20th century, the dolmen was still largely complete. Seven stones formed a chamber with a diameter of around 3.50 metres and an east-facing passage 4.70 metres long. Today, only four slabs of the chamber and one slab of the corridor are still visible