Elusive, but ecologically vital, Namibia's Ugab River only flows above groundfor a few days each year. The subterranean waters underlying this ephemeralriver, however, are shallow enough in places to fill hollows and sustain awildlife population that includes the rare desert elephant.
This image was acquired by Landsat 7’sEnhanced Thematic Mapper plus (ETM+) sensor.
References & Resources
Image provided by the USGS EROS Data Center Satellite Systems Branch as part of the Earth as Art II image series
