Formed by a set of galleries that reach a horizontal length of about four kilometers, being considered like one of the caves excavated in plaster of greater route in the Iberian Peninsula. The archaeological remains found in it belong to the Bronze Age, as we say, specifically in its initial and middle phase, that is, between the years 1,600 and 1,200 a. C.
The main functional characteristic of the cave is not clear, but its functions could be summarized, mainly, in the following: cave-necropolis; Cave-sanctuary; And cave-room, for it seems that he fulfilled, at least, these three functions.
Estremera was one of the largest caves in the world due to the amount of plaster and clay, explained José Latova, photographer, speleologist and one of the experts who worked in the first phase of his exploration, back in the years 70.
In addition to the magnificent natural decoration, rich in strata and information on the evolution of the terrain, what the speleologists of the Standard group found in November 1971 as they went deeper into the galleries were «human remains in anatomical connection [intact, not dismembered], vessels Complete, useful of bone, stone, prints and three engravings of the Bronze Age »
The access, which is covered by a grate in the form of a grill, is performed vertically by a mouth on the plain, about 9 meters deep. At present, the archaeological excavation continues, so that is not much more known.
