Rideau
a waterway, partly natural and partly artificial, formed by lake, river and canal in the province of Onlies roughly 50 miles S. W. of Ottawa and the river Rideau flows out of it to become a tributary of the Ottawa river at the city of Ottawa. The canal, dating from 1834, Kingston on Lake Ontario, forming with the river and lake a waterway 126 miles long with 47 locks RIDGEWAY American author, born at Calais, Me., in