Okavango
See Okavango in American Heritage Dictionary 4
(ōˌkə-vängˈgō) also Cu·ban·go or Ku·ban·go (ko͞o-bängˈgō)
A river of southwest-central Africa flowing about 1,609 km (1,000 mi) from central Angola to the Okavango Basin or Okavango Swamp, a marshy region of northern Botswana.