Restigouche, a N. county of New Brunswick, Canada, bordering on Quebec and the bay of Chaleurs; area, 2,889 sq. m.; pop. in 1871, 5,575, of whom 2,695 were of Scotch, 1,143 of French, 1,133 of Irish, and 483 of English origin or descent. It is intersected by branches of the Restigouche river, which partly separates it from Quebec. The surface is diversified with mountains and valleys. The soil is well timbered; large quantities of timber are exported. Capital, Dalhousie.
Restigouche, a river of Canada, rising in Madawaska co., in the N. TV. part of New Brunswick. It flows N. E. to the mouth of the Mistouche, and thence a little N. of E., forming the boundary between New Brunswick and Quebec, to the bay of Chaleurs, which it enters at Dalhousie, N. B. It is 3 m. wide at its mouth, and is navigable by the largest ships for 18 m. to Campbellton, N. B. The scenery along its course is grand and beautiful. With its tributaries it drains an area of about 5,000 sq. m. of fertile and well timbered country. It abounds in salmon. Its chief tributaries are the Wetomkegewick, Mistouche, and Matapediac from the north, and the Upsalquitch from the south.