gov.nasa.worldwind.layers.Earth
Classes 
BMNGOneImage
BMNGSurfaceLayer
BMNGWMSLayer
CountryBoundariesLayer
EarthNASAPlaceNameLayer
LandsatI3
LandsatI3WMSLayer
MGRSGraticuleLayer
NAIPCalifornia
NAIPCaliforniaWMS
NASAEarthObservatory
NASAWFSPlaceNameLayer
OpenStreetMapLayer
USGSDigitalOrtho
USGSTopographicMaps
USGSTopoHighRes
USGSTopoLowRes
USGSTopoMedRes
USGSUrbanAreaOrtho
UTMGraticuleLayer