1 Boomrivier (spruit in Namibië), Karas, 28°02′00″S 17°05′00″O﻿ / ﻿28.0333°S 17.0833°O﻿ / -28.0333; 17.0833 1 2 Boomrivier (Namakwaland, lat -29.61, lang 20,43), 29°36′54″S 20°25′31″O﻿ / ﻿29.61492°S 20.42528°O﻿ / -29.61492; 20.42528 Boomrivier (Noord-Kaap, lat -28.49, lang 21,70), 28°29′18″S 21°42′01″O﻿ / ﻿28.48833°S 21.70035°O﻿ / -28.48833; 21.70035