ORANGE RIVER, or Gariep, a river of South Africa, bounding Cape Colony on the north, rises about 10,000 feet above the level of the sea, in S. Lat. 28. 40., E. Long. 28. 30., and flows first S.W., then N.W., and finally westward, in an irregular course, till it falls into the Atlantic, S. Lat. 28. 30., E. Long. 16. 30. Gold and copper ore have been found near its banks. The Orange River receives several tributaries, both from the north and from the south. The largest of these is the Ky-Gariep, Vaal, or Yellow River, from the north, which has a longer course than the Orange River itself. The Kuruman, and the Borradale or Fish River, also join it from the north; and the
Hartebeest or Visch River from the south. The length of the river, from the source of the Vaal to the sea, is 1000 miles.