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