The Tuma River is a river located in Nicaragua.
The river, a tributary of the Río Grande de Matagalpa,[1] is located in the Jinotega Department, about 250 kilometers northeast of the capital, Managua. In 1964, President Luis Somoza Debayle decided to dam the river to form Nicaragua's first man-made lake, Apanás Lake, which provides power for the 50-megawatt Centroamérica hydroelectric plant in the country's Central Highlands.[2] It is also an important recreational area, as the river and lake provide a good deal of tourism for the department.[2][3]