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Isle Royale is an island of the Great Lakes, located in the northwest of Lake Superior, and part of the U.S. state of Michigan. The island and the 450 surrounding smaller islands and waters make up Isle Royale National Park. The island is long and wide, with an area of , making it the largest natural island in Lake Superior, the second largest island in the Great Lakes (after Manitoulin Island), the third largest in the contiguous United States (after Long Island and Padre Island), and the 33rd largest island in the United States. It is defined by the United States Census Bureau as Census Tract 9603 of Keweenaw County, Michigan. As of the 2000 census there was no permanent population. After the island was made a national park, some existing residents were allowed to stay, and a few leases are still in effect. Ferries from Michigan and Minnesota land at Rock Harbor on the eastern end of the island; this has a lodge, campground, and information center. Ferries from Minnesota also run to Windigo on the western end, which has a visitor center and campground. ==Geography== In 1875, Isle Royale was set off from Keweenaw County, as a separate county, "Isle Royale County". In 1897, the county was dissolved, and the island was reincorporated into Keweenaw County. The highest point on the island is Mount Desor at , or about above lake level. Isle Royale is within about of the Canadian and Minnesotan shores of the lake, (near the city of Thunder Bay, Ontario), and is from the Michigan shore, on the Keweenaw Peninsula. There are seasonal passenger ferry services to the island from Grand Portage, Minnesota; Copper Harbor, Michigan; and Houghton, Michigan. There is also a seasonal sea plane service. There are no roads on the island, and wheeled vehicles or devices, other than wheelchairs, are not permitted.〔(【引用サイトリンク】 url = http://www.nps.gov/isro/faqs.htm )〕 Rock Harbor has wheeled carts available to move personal belongings from the Rock Harbor marina to the cabins and hotel. Also the National Park Service employs tractors and a few World War II jeeps to move items around the ranger station area at Windigo, Rock Harbor, and Mott Island. Topsoil tends to be thin, which favors trees that have horizontal root patterns such as balsam fir, white spruce, and black spruce. 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「Isle Royale」の詳細全文を読む スポンサード リンク
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