Island topographic map
Interactive map
Click on the map to display elevation.
About this map
Name: Island topographic map, elevation, terrain.
Average elevation: 837 ft
Minimum elevation: 551 ft
Maximum elevation: 1,129 ft
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.