The geographical knowledge acquired by their forcible push to the Albert Nyanza was of the highest importance, and well repaid Stanley, even though in the end he was forced to return. The lay of the plateau separating the great reservoirs of the Nile, the Victoria and Albert Nyanzas, the structure of the mountains and ridges, and the course of the water-sheds, and the course of the rivers Katonga and Rusango have been revealed. The great mountain Gambaragari and its singular people have been discovered, besides a portion of a gulf of the Albert, which Stanley called, in honor of Her Royal Highness Princess Beatrice, Beatrice Gulf. This gulf, almost a lake itself, is formed by the promontory of Usongora, which runs southwest some thirty miles from a point ten geographical miles north of Unyampaka. The eastern coast of the gulf is formed by the countries of Irangara, Unyampaka, Buhuju and Mpororo, which coast-line runs a nearly south southwest course. Between Mpororo and Usongora extend the islands of the maritime state of Utumbi. West of Unsongora is Ukonju, on the western coast of Lake Albert, reputed to be peopled by cannibals. North of Ukonju is the great country of Ulegga. Coming to the eastern coast of Lake Albert we have Ruanda running from Mpororo on the east to Ukonju on the west, occupying the whole of the south and southeast coast of Lake Albert. North of Unyampaka, on the east side, is Irangara, and north of Irangara the district of Toro. Unyoro occupies the whole of the east side from the Murchison Falls of the Victoria Nile to Mpororo; for Unyampaka, Toro, Buhuju and Irangara are merely districts of Unyoro. The great promontory of Usongora, which half shuts in Beatrice Gulf, is tributary to Kabba Rega, though governed by Nyika, King of Gambaragara.