OTTAWA RIVER

OTTAWA RIVER, the largest tributary of the St. Lawrence, and one of the largest Canadian rivers, is 700 m. long; rising in the W. of Quebec, it flows W., then S., then SE., sometimes in a narrow channel, sometimes broadening even into lakes, receiving many tributaries, and passing down rapids and falls, and joins the St. Lawrence at Montreal; down its waters are floated immense quantities of lumber.