Leaving this it expands into the Lake of Horns, having been dammed back in antiquity.
By this time the rainy season has thoroughly set in, and the field is dammed up so as to retain the water.
The harbour, sheltered by a breakwater, will admit vessels of 300 tons at high water; and the river has been dammed to form a basin for the canal which runs to Launceston.
The Makakau and Selabung drain into Lake Ranau, which on the south side is dammed by the volcano Seminung.
This canal provides, with the Illinois & Michigan canal and the Illinois river, an improved waterway from Chicago to the Mississippi river, and greatly increases the commercial and industrial importance of the "twin cities" of Sterling and Rock Falls, where the Rock river is dammed by a dam nearly 1500 ft.
