CHATHAM or MIRAMICHI, an incorporated town and port of entry in Northumberland county, New Brunswick, Can ada, on the Miramichi river, 24m. from its mouth and on the Canadian National railway. Pop. (1931) 4,017. The town con tains a Roman Catholic pro-cathedral, many saw-mills, pulp mills, and establishments for curing and exporting fish. The lum ber trade, fisheries and the manufacture of pulp are the chief industries.