An image of Antarctica differentiating its landmass (dark grey) from its ice shelves (minimum extent, light grey, and maximum extent, white)

A landmass, or land mass, is a large area of land. The term is often used to refer to lands surrounded by an ocean or sea, such as a continent or a large island.

In the field of geology, a landmass is a defined section of continental crust extending above sea level.

See also

Uses material from the Wikipedia article Landmass, released under the CC BY-SA 3.0 license.