Overlays Africa Districts (GAZ) Africa Provinces (GAZ) Brazil Muni Coasts (GAZ) Coasts (GMT) Countries (GAZ) Countries (GMT) India Districts Int. Streams Lakes Land Ocean Rivers (GAZ) Rivers(GMT) States (GAZ) States (GMT) Streams US Counties help@iri

Overlay: Land Mask
Description: Mask containing all land areas.
Region: Global
Source:World bathymetry from the ETOPO 5x5 minute Navy data base.
Example: The Land Mask overlay is indicated by the black areas in the image below.