The paridera is a traditional building in grazing areas of the ancient kingdom of Aragon, southern Soria and northern Guadalajara.
[2] Parideras were built, usually from rocks and rough-hewn logs, either in open areas or mountainous places, where protection from predators or the elements was beneficial to the sheep.
Inside there is a confined space called pajar or pajera, used to store hay and grain, that preventing animals from consuming it.
[3] These facilities may be duplicated or adapted for large herds with several corrals, shelters and pajars, sometimes giving rise to its appearance resembles that of a village.
Located in a natural environment wilder than now, the paridera allowed man to exploit the livestock in rural areas without being the prey of wild animals like bears, Wolf, vulture, eagle and fox.
Also allowed to leave cattle unattended when giving birth, and because the smell of placenta attracted predators, the use of the paridera was essential.
In addition, postpartum ewes and newborn lambs weaker and smaller, can not endure the summer heat and thus can not follow the herd.