English: Basic map of the territory of Simbor, an exclave of the District of Diu located 25 km east of the city of Diu. This 1 sq. km territory comprised an island on which was built Fort St. Anthony of Simbor and, on the mainland bordering the Princely State of Junagadh (British India), two small strips of land on each side of the mouth of a small river. One end of the channel separating the island from the mainland appears to be blocked.
That map is an insert of a Portuguese map of the District of Diu (Portuguese India) titled Carta topographico-agricola do districto de Diu. Published in 1911 by the Cartography Commission (Commissăo de cartographia).