Quartiere XXXV Lido di Castel Fusano on Tavola 57, an almost empty yellow rectangle of woodland named Quarto delle Tane, Quarto Grande and Leccio Bello.
Source: Old map, public domain
Dotted lines divide the forest into labelled blocks including Spinerba and Quarto del Confine, with the reserve named Ragnara at the western end. A narrow built strip and a railway line run along the sea side, and Castel Porziano lies off the eastern tip.