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Georgian Bay (French: ''Baie Georgienne'') is a large bay of Lake Huron, located entirely within Ontario, Canada. The main body of the bay lies east of the Bruce Peninsula and Manitoulin Island. To its northwest is the North Channel. Georgian Bay is surrounded by (listed clockwise) the districts of Manitoulin, Sudbury, Parry Sound and Muskoka, as well as the more populous counties of Simcoe, Grey and Bruce. The Main Channel separates the Bruce Peninsula from Manitoulin Island and connects Georgian Bay to the rest of Lake Huron. The North Channel, located between Manitoulin Island and the Sudbury District, west of Killarney, was once a popular route for steamships and is now used by a variety of pleasure craft to travel to and from Georgian Bay. The shores and waterways of the Georgian Bay are the traditional domain of the Anishinaabeg First Nations peoples to the north and Huron-Petun (Wyandot) to the south. The bay was thus a major Algonquian-Huron trade route. Samuel de Champlain, the first European to explore and map the area in 1615–1616, called it "''La Mer douce''" (the calm sea), also a reference to the bay's freshwater. It was named "Georgian Bay" (after King George IV) by Lieutenant Henry Wolsey Bayfield of the Royal Navy in 1822.〔Ketcheson, Graham. (A Brief History of Georgian Bay ).〕 ==Geography== Georgian Bay is about long by wide.〔(Georgian Bay (bay, Ontario, Canada) - Encyclopedia Britannica ). Britannica.com. Retrieved on 2013-07-12.〕 It covers approximately , making it nearly 80% as large as Lake Ontario.〔(Georgian Bay - definition of Georgian Bay by the Free Online Dictionary, Thesaurus and Encyclopedia ). Thefreedictionary.com. Retrieved on 2013-07-12.〕〔("Nearly as large as Lake Ontario, it is one of the world's great bodies of fresh water." )〕 Eastern Georgian Bay is part of the southern edge of the Canadian Shield, granite bedrock exposed by the glaciers at the end of the last ice age, about 11,000 years ago. The granite rock formations and windswept eastern white pine are characteristic of the islands and much of the shoreline of the bay. The rugged beauty of the area inspired landscapes by artists of the Group of Seven. The western part of the bay, from Collingwood north, and including Manitoulin, Drummond, Cockburn and St. Joseph islands, borders the Niagara Escarpment. Because of its size and narrowness of the straits joining it with the rest of Lake Huron, which is analogous to if not as pronounced as the separation of Lake Huron and Lake Michigan,〔"(Great Lakes Sensitivity to Climatic Forcing: Hydrological Models )." NOAA, 2006.〕 Georgian Bay is sometimes called the "sixth Great Lake". There are tens of thousands of islands in Georgian Bay. Most of these islands are along the east side of the bay and are collectively known as the "Thirty Thousand Islands", including the larger Parry Island. Manitoulin Island, lying along the northern side of the bay, is the world's largest island in a freshwater lake. The Trent–Severn Waterway connects Georgian Bay to Lake Ontario, running from Port Severn in the southeastern corner of Georgian Bay through Lake Simcoe into Lake Ontario near Trenton. Further north, Lake Nipissing drains into Georgian Bay through the French River. In October 2004, the Georgian Bay Littoral was declared a Biosphere Reserve by UNESCO. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Georgian Bay」の詳細全文を読む スポンサード リンク
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