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Hancock, Houghton, Hurontown, Laurium, Osceola, Oskar, Painesdale, Point Mills, Sevenmile Creek,
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Superior, Tamarack, Toivola, near Torch Lake, Twin Lakes, and Wolverine in Houghton County; and
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Copper Falls, Copper Harbor, Isle Royale, near Jacob's Creek, Mandan, Manitou Island, Ojibway,
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Phoenix, and Vaughsville in Keweenaw County.
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Also not included on this list are the hundreds of prehistoric mining pits that exist throughout
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the Copper Country.
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See also Copper mining in Michigan List of Copper Country smelters List of Copper Country mills
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Lists of copper mines in the United States
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Copper Country mines Copper Country mines
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U.S. Route 31 (US 31) is a part of the United States Numbered Highway System that runs from Spanish
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Fort, Alabama, to Mackinaw City, Michigan. In the U.S. state of Tennessee, it runs concurrently
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with Interstate 65 (I-65) for the first mile northward from the Tennessee state line. There US 31
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parallels I-65 to downtown Nashville. At Pulaski US 31 meets the southern terminus of US 31A in
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Tennessee. US 31 continues due north through Lynnville, Columbia, Spring Hill, Franklin and
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Brentwood to Nashville. The route splits into US 31E and US 31W in Nashville and go into Kentucky.
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Route description
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The first mile of US 31 in Tennessee runs concurrently with I-65. At Exit 1 in Ardmore, it leaves
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I-65 and begins an unsigned concurrency with State Route 7. US 31 then goes through Elkton before
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going through mainly rural countryside until it has an intersection with US 64 on the outskirts of
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Pulaski. US 31 gains the name 1st Street through Pulaski; upon leaving Pulaski US 31 meets the
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southern terminus of US 31A (Grigsby Street). US 31 goes through more rural countryside on its way
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to Columbia. In Columbia, US 31 picks up the names Carmack Boulevard and Garden Street; it also has
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a short concurrency with US 412 Business (US 412 Bus.) and intersects the northern terminus of
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US 43. After leaving Columbia, US 31 gains two designations, first it gains a Tennessee Parkway
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designation from Columbia to Rosa L. Parks Boulevard in Nashville, and then it picks up the hidden
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SR 6, which it keeps later as US 31E to the Tennessee state line. US 31 goes through some more
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rural countryside before meeting the western terminus of SR 396 (Saturn Parkway) in Spring Hill and
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gains the name 1st Street. After leaving Spring Hill, US 31 has an interchange with I-840. US 31
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then continues into Franklin, where US 31 Truck makes a turn to the east onto SR 397 (Mack Hatcher
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Memorial Parkway), while US 31, erroneously signed here as US 31 Business (which doesn't actually
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exist and US 31 mainline is signed throughout Franklin), passes north through downtown Franklin.
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US 31 then has an intersection with mainline US 431 (5th Avenue) before passing through Franklin
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Square and crossing the Harpeth River to meet SR 397 and the northern end of US 31 Truck. US 31
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then goes through the Nasville suburb of Brentwood as Franklin Road. While in Brentwood, US 31 has
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three important interchanges with SR 441 (Moores Lane), SR 253 (Concord Road) and SR 254 (Old
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Hickory Boulevard). US 31 next goes through the cities of Oak Hill and Berry Hill, where it has an
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interchange with SR 155 (Thompson Lane/Woodmount Boulevard), before arriving in Nashville.
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US 31 next gains the name 8th Avenue and a while later overlaps US 41 (Lafayette Street), US 70S
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and US 41A. After going over Broadway (US 70 and US 431), US 31 picks up US 431, loses US 70S and
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gains the name Rosa L. Parks Boulevard. US 31, US 431 and US 41 and US 41A then go around the
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Tennessee State Capitol Building and lose US 41A, the Rosa L. Parks name and the Tennessee Parkway
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designation. US 31, US 431 and US 41 then go over the Cumberland River on the Victory Memorial
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Bridge. US 31, US 431 and US 41 then have an interchange with I-24. Immediately after the I-24
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interchange, US 31E splits off (as Ellington Parkway) from US 31, US 41 US 431 and creating the
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beginning of the U.S. Route 31E–US 31W split.
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US 31E is called Ellington Parkway until its overlap with SR 155 (Briley Parkway) between exits 15
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and 14. US 31E then changes names to Johnny Cash Parkway. US 31E then goes through Hendersonville,
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picks up the name Nashville Pike and has a incomplete interchange with SR 386 (Vietnam Veterans
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Parkway). US 31E then goes through Gallatin, meets the northern terminus of SR 386 and US 31E
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Bypass. US 31E then goes through rural countryside, picks up US 231 at Westmoreland. US 31E and
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US 231 the go through more rural countryside until the Tennessee state border (where the northern
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terminus of SR 6 is). US 31E and US 231 stay concurrent into Kentucky.
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As for US 31W, US 41 and US 431 they change names a total of two times, first from Spring Street to
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then Dickerson Pike. US 431 leaves the congruence at Trinty Lane, leaving US 31W, US 41 to carry
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on. US 31W, US 41 then have a incomplete interchange with SR 155 and I-65. US 31W, US 41 split just
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north of Goodlettsville. US 31W has an interchange with I-65. US 31W the goes through rural
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countryside until getting to White House. US 31W then goes through more rural countryside until
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reaching the Tennessee state border, where it crosses in Kentucky.
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History
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US 31 through Tennessee was one of the original 1926 highways. that was approved on November 11,
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1926.
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Major intersections References
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31 Tennessee Transportation in Giles County, Tennessee Transportation in Maury County, Tennessee
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Transportation in Williamson County, Tennessee Transportation in Davidson County, Tennessee
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Columbia, Tennessee Franklin, Tennessee Transportation in Nashville, Tennessee
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Lake Naivasha is a freshwater lake in Kenya, outside the town of Naivasha in Nakuru County, which
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lies north west of Nairobi. It is part of the Great Rift Valley. The name derives from the local
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Maasai name Nai'posha, meaning "rough water" because of the sudden storms which can arise.
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Location
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Lake Naivasha is at the highest elevation of the Kenyan Rift valley at in a complex geological
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combination of volcanic rocks and sedimentary deposits from a larger Pleistocene Era lake. Apart
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from transient streams, the lake is fed by the perennial Malewa and Gilgil rivers. There is no
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visible outlet, but since the lake water is relatively fresh it is assumed to have an underground
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outflow.
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The lake has a surface area of ,
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and is surrounded by a swamp which covers an area of , but this can vary largely depending on
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rainfall. It is situated at an altitude of . The lake has an average depth of , with the deepest
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area being at Crescent Island, at a maximum depth of . Njorowa Gorge once formed the lake's outlet,
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but it is now high above the lake and forms the entrance to Hell's Gate National Park. The town of
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Naivasha (formerly East Nakuru) lies on the north-east edge of the lake.
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Ecology
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The lake is home to a variety of types of wildlife including over 400 different species of bird and
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a sizable population of hippos. The fish community in the lake has been highly variable over time,
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influenced by changes in climate, fishing effort and the introduction of invasive species. The
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most recent shift in the fish population followed the accidental introduction of common carp in
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2001. Nine years later, in 2010, common carp accounted for over 90% of the mass of fish caught in
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the lake.
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There are two smaller lakes in the vicinity of Lake Naivasha: Lake Oloiden and Lake Sonachi (a
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green crater lake). The Crater Lake Game Sanctuary lies nearby, while the lake shore is known for
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its population of European immigrants and settlers.
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History
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Between 1937 and 1950, the lake was used as a landing place for flying boats on the Imperial
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Airways passenger and mail route from Southampton in Britain to South Africa. It linked Kisumu and
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Nairobi. Joy Adamson, the author of Born Free, lived on the shores of the lake in the mid-1960s.
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On the shores of the lake is Oserian ("Djinn Palace"), which gained notoriety in the Happy Valley
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days between the two world wars. It now forms part of the Oserian flower farm. In 1999, the Lake
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Naivasha Riparian Association received the Ramsar Wetland Conservation Award for its conservation
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efforts regarding the Lake Naivasha Ramsar site.
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Agriculture and Industry
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Floriculture forms the main industry around the lake. However, the largely unregulated use of lake