The mansio of Hasta was identified in the late 80s of the last century near the current hamlet of Alberese, in the Le Frasche area, during agricultural works that led to the destruction by deep plowing of the complex. The resting place, mentioned in the cd. Tabula Peutingeriana, arose at about 400 m of the via Aurelia vetus that in Roman times passed through Alberese to reach the mouth of the Ombrone and head north towards Pisa. Some amateur aerial photographs taken immediately after the destruction constitute the only testimony of the plan of the building which belongs to a model widely spread in the western part of the Roman Empire from the second century AD, that of the "courtyard" buildings that arose on one of the two sides of the road, organized into two or more buildings, generally the mansio and the spa, and enclosed within an enclosure. Several bricks stamped by some of the main urban figlinae officinatores present in Rome and outside Rome date the construction between the end of the 1st and the beginning of the 2nd century AD. Among these we can distinguish those of T. Canidienus Atimetus a servant of Trajan very active in the construction of the Forum, of the Baths and of the Markets in Rome, who appears as Plotina's agent, and those of the Domitii Lucanus and Tullus domains merged into the res Caesaris through Domitia Lucilla minor, mother of Marcus Aurelius. Hasta's mansio was therefore built with an imperial investment. The intervention of the emperor is not surprising considering Alberese's proximity to the praedia dei Domitii Ahenobarbi distributed between the Argentario coast and the mouth of the Albegna and in the islands of Giglio and Giannutri, and inherited by the res Caesaris at the death of Nero, last exponent of the gens. As for Hasta, the life of the stopping place remained substantially unchanged until the birth of the cursus publicus at the end of the III / beginning of the IV century AD, when a probable restructuring was recorded. The resting place was abandoned at the end of the 5th century AD. similarly to many other mansions of the Italian peninsula. There are no indications of a continuity of occupation, even if the generic discovery of human bones would suggest a funerary or residential-funerary reuse of late antiquity.