Tags: Military Structure.
Rosia Airfield is an abandoned World War II military airfield in Italy which is located approximately 13 km southwest of Siena; 180 km northwest of Rome.It was an all-weather temporary field built by the XII Engineer Command using a graded earth compacted surface with a prefabricated hessian (burlap) surfacing known as PHS. PHS was made of an asphalt-impregnated jute which was rolled out over the compacted surface over a square mesh track (SMT) grid of wire joined in 3-inch squares.