Carte topographique Island

Nom : Carte topographique Island, altitude, relief.

Lieu : Island, Avallon, Yonne, Bourgogne-Franche-Comté, Metropolitan France, 89200, France (47.42836 3.81606 47.48484 3.89054)

Altitude moyenne : 255 m

Altitude minimum : 168 m

Altitude maximum : 344 m

Artificial islands are sometimes built on pre-existing "low-tide elevation," a naturally formed area of land which is surrounded by and above water at low tide but submerged at high tide. Legally these are not islands and have no territorial sea of their own.