'Copper Island' is a local name given to the northern part of the
Keweenaw Peninsula (projecting northeastward into
Lake Superior at the western end of the
Upper Peninsula of Michigan,
United States of America), separated from the rest of the Keweenaw Peninsula by
Portage Lake and the
Keweenaw Waterway. The area was "isolated" by dredging in
1859 and construction (
1860s) of a ship canal from Portage Lake—on the east side of the Keweenaw Peninsula—to Lake Superior on the west. The ship canal is 100 feet (30 m) wide and 21 feet (6 m) deep. The resulting "island" was called ''Kuparisaari'' (meaning "Copper Island") by
Finnish settlers to the area. Neither the
United States Geological Survey nor the state of
Michigan identify this area as an island or use this name. If considered an island, Copper Island is the largest island in Lake Superior.
Isle Royale is the largest naturally isolated island in Lake Superior.
The principal towns on the Copper Island end of Keweenaw Peninsula are
Hancock and
Calumet. The area is connected to the rest of the Upper Peninsula by the
Portage Lake Lift Bridge, the latest in a series of bridges between
Hancock and
Houghton;
U.S. Highway 41 crosses this
bridge and has its northern terminus just east of
Copper Harbor at the far eastern tip of the
peninsula.
A newspaper named ''Copper Island News'' was formerly published in Hancock and an unrelated now-defunct newspaper called the ''Copper Island Sentinel'' was published in Calumet.
The 'Copper Island Classic' is an
ice hockey tournament contested annually between Hancock Central High School and Calumet High School.
See also
★
Native copper
External links
★
Exploring Houghton and Hancock in the Upper Peninsula of Michigan
★
In-group Finnish Place Names - Michigan