The Keweenaw Peninsula reference article from the English Wikipedia on 24-Apr-2004
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Keweenaw Peninsula

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The Keweenaw Peninsula is the most northern part of Michigan's Upper Peninsula. It is connected to the mainland by a bridge spanning the small canal that separates the cities of Houghton on the south side and Hancock on the north. Although commonly called a peninsula, the bulk of the "peninsula" is technically an island called "Copper Island" (or "Kuparisaari" by the Finnish settlers) as the 1860s completion of the Keweenaw Waterway separated the area north of Portage Lake from the mainland.[1]

Reference: In-group Finnish Place Names - Michigan

List of towns in The Keweenaw:

Regions of Michigan
Keweenaw Peninsula | Upper Peninsula | Lower Peninsula | Metro Detroit
Largest Cities
Ann Arbor | Canton | Clinton | Dearborn | Detroit | Flint | Grand Rapids | Kalamazoo | Lansing | Livonia | Pontiac | Rochester Hills | Shelby | Southfield | Sterling Heights | Taylor | Troy | Warren | West Bloomfield | Westland
Counties
Alcona | Alger | Allegan | Alpena | Antrim | Arenac | Baraga | Barry | Bay | Benzie | Berrien | Branch | Calhoun | Cass | Charlevoix | Cheboygan | Chippewa | Clare | Clinton | Crawford | Delta | Dickinson | Eaton | Emmet | Genesee | Gladwin | Gogebic | Grand Traverse | Gratiot | Hillsdale | Houghton | Huron | Ingham | Ionia | Iosco | Iron | Isabella | Jackson | Kalamazoo | Kalkaska | Kent | Keweenaw | Lake | Lapeer | Leelanau | Lenawee | Livingston | Luce | Mackinac | Macomb | Manistee | Marquette | Mason | Mecosta | Menominee | Midland | Missaukee | Monroe | Montcalm | Montmorency | Muskegon | Newaygo | Oakland | Oceana | Ogemaw | Ontonagon | Osceola | Oscoda | Otsego | Ottawa | Presque Isle | Roscommon | Saginaw | Sanilac | Schoolcraft | Schiawassee | St. Clair | St. Joseph | Tuscola | Van Buren | Washtenaw | Wayne | Wexford