Ruins of the Castle of Bou Negre Monument · Argelita, El Alto Mijares, Castellón The castle of Bou Negre, also called de la Mola, stands on the boundary between Argelita and Ludiente, in the Alto Mijares. Of medieval origin, it is documented from the 12th century, and in 1178 it is mentioned among the castles that marked the boundary of the diocese of Tortosa. In the early 13th century it belonged to Abu Zayd, who ceded it to his son Ferran Pérez; it later passed to the crown, to the Arenós family and to the ducal house of Villahermosa, and was a key stronghold in various armed conflicts, being burned along with the town during the War of the Spanish Succession. Situated at 748 metres, it preserved walls and towers defending its eastern and southern approaches, protected to the north and west by cliffs. Today, stretches of wall, tower bases and a rectangular tower of possible Roman origin survive. Photo: Pavila (Public domain) What to see and do in Argelita