Take a look in the attached map, where I’ve drawn the circle, that ought to be more or less your property, #311. What was once a Roman villa there appears, from the map, to have spilled down several tens of meters to the SW of you. Obviously only another archaeological survey would be able to capture the whole picture. The publication is De Rossi, G.M. 1979. Bovillae. In Forma Italiae, Regio I, Vol. 15, 298-323. Florence. It’s the most detailed and authoritative archaeologic