- James Bay
the S arm of Hudson Bay, in E Canada between Ontario and Quebec provinces. 300 mi. (483 km) long; 160 mi. (258 km) wide.
* * *Generally less than 200 ft (60 m) deep, it is 275 mi (443 km) long and 135 mi (217 km) wide. It contains numerous islands, of which the largest is Akimiski Island. The many rivers that empty into the bay, including the Moose, are the cause of its low salinity. Visited by Henry Hudson in 1610, it is named for Capt. Thomas James, who explored it in 1631.
* * *shallow southern extension of Hudson Bay, located between northern Ontario and Quebec, Canada. Generally less than 200 feet (60 m) deep, the bay is 275 miles (443 km) long and 135 miles (217 km) wide and contains numerous islands, all of which are administered by the Northwest Territories. Akimiski, the largest island, has an area of 1,159 square miles (3,002 square km). The many rivers that flow into James Bay, including La Grande, Eastmain, Rupert, Broadback, Nottaway, Harricana, Moose, Albany, Attawapiskat, and Ekwan, are responsible for its low salinity. Among the chief settlements on the bay's forested shores are the trading posts of Fort-George, Nouveau-Comptoir, Eastmain, Fort-Rupert, Lake River, Attawapiskat, Fort Albany, Moose Factory, and Moosonee (the northern terminus of the Ontario Northland Railway). Visited in 1610 by the English navigator Henry Hudson, the bay was named after Captain Thomas James, who explored it in 1631.
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