The Sa Ferradura site is located on a coastal promontory situated on the southwest coast of Mallorca, in an area currently dominated by low garrigue vegetation formations.
It is accessed through a narrow natural entrance, defended by several stepped walled lines. The upper one constitutes a considerable wall, closing off access to the settlement. It is formed by two concave sections built using cyclopean technique, joined at an angle, with a total length of about 18 meters. Inside the fortified enclosure, we find two rooms; in one, which must have been an open-air enclosure, seven hearths were found, and in the other, it was a closed room with an access door.
This site clearly illustrates the transition period between the end of the navetas stage and the beginning of the talayotic culture. In this context, we find this fortification, the oldest in Mallorca, in a very inaccessible location. It is believed that its inhabitants sought a place where they could defend themselves from attacks coming from the interior of the island, as all evidence points to it not being a permanent settlement but an occasional refuge «due to the large number of fireplaces found or the absence of a water deposit». Just opposite the isthmus are remains of another archaeological site, also prehistoric, still unexplored.