The Hebrus, together with its tributaries which flow into it from the north, east and west, drains almost the whole of Thrace.
Hence it may be considered to terminate where the Rio Cojedes, which drains the elevated valley in which Barquisimeto stands, after rising on its western slopes flows eastwards into the basin of the Orinoco.
Some miles lower down, at Leitmeritz (433 ft.), the waters of the Elbe are tinted by the reddish Eger, a stream which drains the southern slopes of the Erzgebirge.
The town lies pleasantly upon a hill rising above a mere, which drains to the Waveney, having its banks laid out as public gardens.
The Umfolosi, with two main branches, the Black and White Umfolosi, drains the central part of the country and reaches the ocean at St Lucia Bay.
