Boundary of the lagoon territory made with boundary stones that indicate the limit within which orders and regulations for the environmental safeguard of the lagoon are valid. It was established in 1610 by the Senate of the Republic, it was accomplished in 1792 and in 1990 its limits were updated, including the sheets of water between the three lagoon inlets and S. Erasmo Island.
Source: Taken from "Conterminazione lagunare - Storia, ingegneria, politica e diritto nella Laguna di Venezia", Istituto Veneto di Scienze, Lettere ed Arti