Deçan Bistrica originates from the southern slopes of the Bogićevica mountain, a part of the massive Prokletije mountain system. The river flows north of the Đeravica peak, the highest in Kosovo (2,656 m), initially under the name of Kožnjarska Bistrica, and receives many streams from the Bogićevica, Micinat, Strečoka and Kopranik mountains.