Cubango (kōōbäng´gō), Kuvango (kōōväng´gō), or Okavango (ōkəväng´gō), river, c.1,000 mi (1,610 km) long, rising in the highlands of central Angola, W central Africa, and flowing southeast, across the Caprivi Strip, Namibia, to the Okavango Delta, N Botswana. It forms part of the Angola–Namibia border. The Okavango Delta is a swamp (c.5,000 sq mi/12,950 sq km) that occupies a depression that contained a large prehistoric lake. The northern part of this swampy area has papyrus growth and is wet throughout the year; the rest of the delta fills with water as the seasonal cycle progresses.
"Cubango." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (November 14, 2018). https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/cubango
"Cubango." The Columbia Encyclopedia, 6th ed.. . Retrieved November 14, 2018 from Encyclopedia.com: https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/cubango