Black River

the name of several ~ivers in the United States: (1) An affluent of the Arkansas river, in Arkansas, 400 miles long. It is navigable to Poplar Bluff, 311 miles; (2) a river in New York, rising in the A dir on dacks, and emptying into Lake Ontario near Water town, length 200 miles; (8) a river in Wisconsin, fdowing S. W., and emptying into the Mi i ippi river near Lacro e; length 200 miles; (4) a river rising in the S. KE. of Mi ouri, flowing nearly S., and entering the White river, of which it is the chief tributary, at Jackson port, Ark.; length, 350 miles, of which 100 miles are navigable.