The area where the farm Rio Coverino of volcanic origin, has rocks dark gray paste, high in potassium, abundant with large white blood cells. this material was widely used in Roman times and later medieval and then stop in the Renaissance.

Must wait for many centuries to find a mining in the area. Indeed, because of sanctions eonomiche, society of nations, after the fascist adventure ethiopia, the scheme requires the autarky. Is therefore necessary to promote all mining activities. aluminium is one of the most interesting minerals, especially in view of a military modernization and a nascent aviation.

therefore is detected in aluminium oxide, contained in leucite, a source to cover this shortcoming. thus was born the Roman society potash beginning the exploitation of bench effusive, so that is built in 30 years the plant Rio Coverino, adopting as a means of cultivating the opencast mining and processing ore to fall.

This type of work involves the construction of the plant on a china or natural gradient, which gives the building a typical pyramid shape in steps.

The building of offices and plant fall was purchased by current owners and transformed into a pleasant and distinctive farm.