The villa of Mattonara take the name from homonymus resort in the municipality of Civitavecchia. Its ruins are located behind the factory Molinari between the Etruscan necropolis and Hole of Nerone. The house was extended about one hectare of land. A road linking the ancient Via Aurelia. Today emerge only a few walls in opus reticulatum, the rest is under a parking lot and some modern buildings. Connected to the house was a well-preserved fishpond. We are therefore in the presence of one of the many seaside villas on the coast, from the observations on the typology of the walls of the fishpond we can assume a continuity of population from the I sec. B.C. to V sec. A.D. The pond is rectangular (30m x 18m) with the short side oriented north-south direction. The pond has two long submerged channels (length 23m) which were used to make the sea water. Internally the structure is divided into two pools, the first of 9.5mx 18m and the second of 20.5mx 18m. On the north side are five small square tanks (approx 2.7m wide), perhaps used for the rearing of shellfish or eels. The entire structure was carved in sedimentary rock (as known macco) internally lined with opus reticulatum. On the coast a few meters from the east side of the pond are three small rectangular basins (diagonal about 3m) and a circular (6m diameter). These small pools were used as reservoirs to supply water to the pond during times of prolonged low tide. Considering that in the proximity is a second pond (Val Daliga Tower) archaeologists S.Bastianelli and F.Barbaranelli assumed that in this area had to be the ancient statio of Algae indicated on the Itinerarium Maritimum.





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