The building is an excellent example of industrial architecture of the period, although it is now in ruins. It is located in front of the salt flats and next to the road (we can get a good view of them from this place).
As we can read on the page of the Poza de la Sal Town Hall, it is "an excellent example of this type of architecture and proof of the importance that the salt industry reached, are the three Royal Salt Warehouses that can still be seen, although in ruins, at the ends of the Salt Cellar.
They are known as: El Depósito, Trascastro and La Magdalena. These last two receive their name from the valley in which they were built and present as main construction characteristics the masonry and masonry fabric, semicircular access openings, and their large dimensions, with a double function: storage and room. El Depósito is the oldest building, erected during the reign of Felipe II, while the construction of Trascastro and La Magdalena was ordered and financed by the Royal Treasury of the Bourbons on the threshold of the 19th century, during the reign of Carlos IV, once the Administration House of the Reales Salinas has been completed."