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James Bay,shallow southern arm of Hudson Bay, c.300 mi (480 km) long and 140 mi (230 km) wide, E central Canada, in Nunavut Territory between Ont. and Que. Numerous rivers flow into the bay; many of these have been developed for hydroelectric power in Quebec (see James Bay ProjectJames Bay Project,
a colossal hydroelectric development of the rivers emptying into the E James Bay, central Quebec, Canada. La Grande Phase I, finished in 1985, created the world's largest underground powerhouse, a tiered spillway on La Grande River three times the height of
..... Click the link for more information. ). Of its many islands, the largest is Akimiski (1,158 sq mi/3,000 sq km). The shores of the bay and some of its islands are wildlife reserves.
The bay was discovered (1610) by Henry HudsonHudson, Henry,
fl. 1607–11, English navigator and explorer. He was hired (1607) by the English Muscovy Company to find the Northeast Passage to Asia. He failed, and another attempt (1608) to find a new route was also fruitless.
..... Click the link for more information. but was named for Capt. Thomas JamesJames, Thomas,
1593?–1635?, English navigator and explorer (1631) of James Bay. Financed by Bristol merchants, he sailed in command of the Henrietta Maria in the spring of 1631 to find the Northwest Passage to the East.
..... Click the link for more information. , an Englishman who explored much of it in 1631. An early fur-trading post established by Groseilliers and Radisson became (1670) Rupert HouseRupert House,
village, W Que., Canada, on the Rupert River east of its mouth on James Bay. It was founded in 1668 as Charles Fort by the trader des Groseilliers, whose success there led to the incorporation of the Hudson's Bay Company in 1670.
..... Click the link for more information. , the first post established there by the Hudson's Bay Company. Other important posts on James Bay were Fort Albany, Fort George (now Chisasibi), and Eastmain.
a bay in the southern part of Hudson Bay, on the coast of Canada. It cuts deeply inland for 400 km but has a depth of less than 100 m. There is a group of islands in the middle of the bay; the largest is Akimiski Island. The Albany and Eastmain rivers flow into the bay. It is covered with ice most of the year.