Beni

Beni, a river of South America, in the state of Bolivia, rises in the La Paz Cordillera of the Andes, at a height of almost 12,000 feet, and collects all the streams that rush down from the mountains between 14° and 18° S. lat. Flowing through the department of its own name, it joins the Mamore, after a course of over 1000 miles, to form the Madeira, one of the largest affluents of the Amazon. The current is very strong, and there are numerous rapids, but the river is traversed by the rafts and canoes of india-rubber collectors and bark gatherers.