The Black River is a river in eastern Yukon-Koyukuk Census Area, Alaska, United States. It flows 160 miles (250 km) from its source to its mouth at the Porcupine River near the city of Fort Yukon. The local Gwich'in name for the river is "Draanjik," which translates as "Caches Along The River." The river gives its name to the Draanjik Gwich'in of Chalkytsik, Alaska. The river has borne several other names: Big Black River (in order to distinguish it from similarly named streams), Orange Creek, Salmon Fork, Salmon River, Squirrel Creek, and Squirrel River; the Board on Geographic Names officially ruled in favor of "Black River" in 1959.[1]