Ngami, a lake of South Africa, supposed to be from 50 to 70 m. long, and from 7 to 9 m. wide. Its situation may be roughly stated as in lat. 20° 28' S., lon. 22° 50' E., and it extends from E. N. E. to W. S. W., being narrowest at a point near the middle. Its elevation above the sea is 3,285 ft. as determined by Livingstone, but a subsequent measurement by Andersson makes it 3,713 ft. The water is perfectly fresh except when the lake is low; it then becomes brackish. It is subject to a rise and fall of two or three feet, the cause of which is unknown. A low and sandy shore forms the northern border of the lake, and extends about a mile backward, beyond which the country is well wooded. The opposite shore is elevated, fringed with belts of reeds and bushes, and only accessible in a few places. The principal tributary of Lake Ngami is the Tioge, a river which flows in on the west and is about 40 yards broad, but very deep when at its highest stage. It overflows in June, July, and August, and sometimes, later. The Zouga, a broad and sluggish river, issues from the E. extremity of the lake; its width at the outlet is 200 yards.

After an easterly course of about 200 m. the waters of this stream expand into a small lake known as Kumadau, beyond which they do not suffice to fill the channel, and disappear, probably by evaporation. It is supposed, however, that the Zouga communicates with the Limpopo, and also that the tributaries of Lake Ngami are connected with the Zambesi river system. This lake was discovered in 1849 by Livingstone, Oswell, and Murray, and has since been visited by Anders-son and other Europeans.