South Dakota is a U. S. state in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux Native American tribes, who compose a large portion of the population and dominated the territory. South Dakota is the seventeenth largest by area, but the fifth smallest by population and the 5th least densely populated of the 50 United States; as the southern part of the former Dakota Territory, South Dakota became a state on November 2, 1889 with North Dakota. Pierre is the state capital and Sioux Falls, with a population of about 187,200, is South Dakota's largest city. South Dakota is bordered by the states of North Dakota, Iowa, Nebraska and Montana; the state is bisected by the Missouri River, dividing South Dakota into two geographically and distinct halves, known to residents as "East River" and "West River". Eastern South Dakota is home to most of the state's population, the area's fertile soil is used to grow a variety of crops. West of the Missouri, ranching is the predominant agricultural activity, the economy is more dependent on tourism and defense spending.
Most of the Native American reservations are in West River. The Black Hills, a group of low pine-covered mountains sacred to the Sioux, are in the southwest part of the state. Mount Rushmore, a major tourist destination, is there. South Dakota has a temperate continental climate, with four distinct seasons and precipitation ranging from moderate in the east to semi-arid in the west; the state's ecology features species typical of a North American grassland biome. Humans have inhabited the area for several millennia, with the Sioux becoming dominant by the early 19th century. In the late 19th century, European-American settlement intensified after a gold rush in the Black Hills and the construction of railroads from the east. Encroaching miners and settlers triggered a number of Indian wars, ending with the Wounded Knee Massacre in 1890. Key events in the 20th century included the Dust Bowl and Great Depression, increased federal spending during the 1940s and 1950s for agriculture and defense, an industrialization of agriculture that has reduced family farming.
While several Democratic senators have represented South Dakota for multiple terms at the federal level, the state government is controlled by the Republican Party, whose nominees have carried South Dakota in each of the last 13 presidential elections. Dominated by an agricultural economy and a rural lifestyle, South Dakota has sought to diversify its economy in areas to attract and retain residents. South Dakota's history and rural character still influence the state's culture. South Dakota is in the north-central United States, is considered a part of the Midwest by the U. S. Census Bureau; the culture and geography of western South Dakota have more in common with the West than the Midwest. South Dakota has a total area of 77,116 square miles, making the state the 17th largest in the Union. Black Elk Peak named Harney Peak, with an elevation of 7,242 ft, is the state's highest point, while the shoreline of Big Stone Lake is the lowest, with an elevation of 966 ft. South Dakota is bordered to the north by North Dakota.
The geographical center of the U. S. is 17 miles west of Castle Rock in Butte County. The North American continental pole of inaccessibility is between Allen and Kyle, 1,024 mi from the nearest coastline; the Missouri River is the longest river in the state. Other major South Dakota rivers include the Cheyenne, Big Sioux, White Rivers. Eastern South Dakota has many natural lakes created by periods of glaciation. Additionally, dams on the Missouri River create four large reservoirs: Lake Oahe, Lake Sharpe, Lake Francis Case, Lewis and Clark Lake. South Dakota can be divided into three regions: eastern South Dakota, western South Dakota, the Black Hills; the Missouri River serves as a boundary in terms of geographic and political differences between eastern and western South Dakota. The geography of the Black Hills, long considered sacred by Native Americans, differs from its surroundings to such an extent it can be considered separate from the rest of western South Dakota. At times the Black Hills are combined with the rest of western South Dakota, people refer to the resulting two regions divided by the Missouri River as West River and East River.
Eastern South Dakota features higher precipitation and lower topography than the western part of the state. Smaller geographic regions of this area include the Coteau des Prairies, the Dissected Till Plains, the James River Valley; the Coteau des Prairies is a plateau bordered on the east by the Minnesota River Valley and on the west by the James River Basin. Further west, the James River Basin is low, flat eroded land, following the flow of the James River through South Dakota from north to south; the Dissected Till Plains, an area of rolling hills and fertile soil that covers much of Iowa and Nebraska, extends into the southeastern corner of South Dakota. Layers deposited during the Pleistocene epoch, starting around two million years ago, cover most of eastern South Dakota; these are the youngest rock and sediment layers in the state, the product of several successive periods of glaciation which deposited a large amount of rocks and soil, known as till, over the area. The Great Plains cover most of the western two-thirds of South Dakota.
West of the Missouri Rive
U.S. Route 16
U. S. Route 16 is an east–west United States Highway between Rapid City, South Dakota and Yellowstone National Park in Wyoming; as of 2004, the highway's eastern terminus is at a junction with Interstate 90/U. S. Route 14, concurrent with I-190, in Rapid City, South Dakota; the western terminus is the east entrance to Yellowstone National Park, concurrent with US 14 and US 20. US 16 in Wyoming crosses through the towns of Newcastle and Upton before joining I-90 near Moorcroft, it runs concurrently with I-90 to Gillette, where it splits off north and arcs back down to the town of Buffalo. From Buffalo it goes over the Powder River Pass on its way to Worland. In Worland, it overlaps US 20 through the towns of Basin and Greybull. In Greybull, the two routes combine with US 14 and go west to Cody and into Yellowstone National Park. For most of the way it is a two-lane road. US 16 is known as Mount Rushmore Road in western South Dakota; the highway enters South Dakota east of Wyoming. It travels near the third-longest cave in the world.
The highway goes through the city of Custer and shares alignment with US 385. East of Hill City, US 16 splits off US 385, it becomes a four-lane divided highway, with the two roadways separated by up to a half-mile in some places, including the old gold-mining town of Rockerville, South Dakota, contained between the two roadways. In Rapid City, a truck bypass runs along Catron Boulevard and Elk Vale Road up to Exit 61 on I-90; the South Dakota section of US 16 is defined at South Dakota Codified Laws § 31-4-138. US 16 connected Detroit with Yellowstone, including a ferry link across Lake Michigan between Muskegon and Milwaukee, Wisconsin. In Michigan, the route was in use long before automobiles and was known to white settlers as the Grand River Road, prior to the designation of US Routes in 1926, had been designated as M-16 in the 1920s from Detroit to south of Muskegon. In 1938, reflectorized discs were placed on US-16 every 100 feet from Detroit to Lansing, resulting in fewer nighttime traffic accidents.
Other states would do the same on their roads. US 16 crossed the South Dakota – Wyoming state line west of Spearfish. U. S. Route 216 was commissioned in 1930 as a loop off US 16 to the south between Rapid City and Moorcroft, crossing the state line west of Custer. In 1934, US 16 was moved to the US 216 alignment, while the former US 16 became part of an extension of US 14. In Michigan, most of US 16 was superseded by I-96 and a segment of Grand River Avenue in Detroit became M-5. US 16 was decommissioned in Wisconsin and eastern South Dakota to its present termini. Between Rapid City and Dexter, Minnesota, it has been supplanted by I-90. East of there it is now Minnesota State Highway 16 and Wisconsin Highway 16. In South Dakota it was replaced by various state highways and county roads: in West River the old alignment was transferred to county responsibility while in East River it remained a state-maintained highway. An older Alternate US 16 in South Dakota has become South Dakota Highway 240.
In South Dakota, in 2009, the South Dakota Department of Transportation designated US-16/US-385 between Custer and Hill City, which passes by the Crazy Horse Memorial, now being carved in the Black Hills, the Crazy Horse Memorial Highway. This segment of US-385 is a part of the George Hearst Memorial Highway. Mileage resets at the state line crossing. U. S. Route 116 U. S. Route 216 U. S. Route 16A in South Dakota Special routes of U. S. Route 16 Endpoints of US 16 Highways and Gas Stations- US Hwy 16 Page 1937 South Dakota Transportation Map 1930 Minnesota Transportation Map 1937 Wisconsin Transportation Map
U.S. Route 14
U. S. Route 14, an east–west route, is one of the original United States highways of 1926, it has a length of 1,398 miles, but it had a peak length of 1,429 miles. For much of its length, it runs parallel to Interstate 90; as of 2004, the highway's eastern terminus is in Chicago, Illinois. Its western terminus is the east entrance of Yellowstone National Park in Wyoming, with the western terminus of U. S. Route 16 and the western terminus of the eastern segment of U. S. Route 20. U. S. 14 begins at the east entrance to Yellowstone National Park, along with U. S. 16 and the eastern segment of U. S. 20. It travels through the Shoshone National Forest to Cody, where U. S. 14A splits off to the north. Both routes traverse the dry Bighorn Basin, followed by a steep ascent up the Big Horn Mountains and through the Bighorn National Forest, where they rejoin at Burgess Junction; the highway descends the eastern slope of the Bighorns between Burgess Junction and Dayton. U. S. 14 follows I-90 south from Ranchester to Sheridan.
The highway turns east and south to again join I-90 near Gillette. It splits off for a short time to Carlile rejoins I-90 which it follows to the state line; the South Dakota section of U. S. 14, other than a concurrency with Interstate 90, is defined in the South Dakota Codified Laws. The Laura Ingalls Wilder Historic Highway incorporates U. S. 14 from South Dakota in the west to Rochester, Minnesota, in the east, where the historic roadway continues on U. S. 63. The author moved to De Smet, SD from Walnut Grove, MN via the Chicago and Northwestern, which parallels the highway from the Black Hills to La Crosse, WI. In South Dakota and Minnesota, the road parallels the Rapid City and Eastern Railroad the Dakota and Eastern Railroad. US 14 and US 83 are the only national routes serving Pierre, South Dakota, one of only four state capitals not on the Interstate Highway System. U. S. 14 enters the state from South Dakota west of Lake Benton. It goes east through several small towns such as Balaton, Revere, Lamberton and Sleepy Eye, on a two-lane road until New Ulm, where it is a divided highway.
From New Ulm to Mankato, the highway lies north of the Minnesota River. Shortly before coming to the Mankato/North Mankato area, U. S. 14 becomes a freeway bypass, which becomes an expressway east of Mankato. This section is part of the Laura Ingalls Wilder Historic Highway as it passes through Walnut Grove, it continues east south of Waseca and at Owatonna, it crosses Interstate 35. It heads east towards Rochester, with an expressway segment beginning at Minnesota State Highway 56 and continuing east into Rochester. Once it enters Rochester, it has a concurrency with U. S. Route 52. After the concurrency, it continues through Rochester as a divided highway. After Rochester, the highway parallels Interstate 90 until Winona, where U. S. 14 gets picked up by U. S. Route 61; the two highways run concurrently the rest of the way in Minnesota, cross the Mississippi River at La Crescent over the La Crosse West Channel Bridge. U. S. 14 was extended to a full, limited-access freeway from three miles west of Janesville to Interstate 35 at Owatonna.
Most of the new route is located south of the existing alignment so as to avoid overlapping Interstate 35. The expansion was opened to traffic on August 31, 2012, creating a continuous 4-lane route from North Mankato to Owatonna; the section from Waseca to Janesville has yet to be upgraded to freeway standards. The Minnesota section of U. S. 14 is defined as part of Constitutional Route 7 and Trunk Highways 121 and 122 in the Minnesota Statutes. U. S. 14 enters the state of Wisconsin along with U. S. Route 61 across the Mississippi River into La Crosse. Running through rural southern Wisconsin, the route passes through Madison and the village square of Walworth. U. S. 14 exits into Illinois at Big Foot Prairie. In the state of Illinois, U. S. 14 runs southeast from north of Harvard to Chicago via Woodstock and the northwest suburbs. Southeast of Route 47, U. S. 14 has four lanes. Continuing southeastward from just after the overpass above Route 31, U. S. 14 passes beneath and closely parallels the tracks of the Union Pacific Railroad's Harvard Subdivision.
Through the northwest suburbs of Chicago, this route is referred to as "Northwest Highway" and is a busy thoroughfare. East of Des Plaines, U. S. 14 becomes Dempster Street until its intersection with Waukegan Road. From here, U. S. 14 follows Waukegan Road, Caldwell Avenue, Peterson Avenue, Ridge Avenue to its eastern end, at the corner of Broadway and U. S. 41. At an earlier point, U. S. 14 extended south on Lake Shore Drive onto Michigan Avenue. U. S. 14 was the "Black and Yellow Trail", so named as it connected Minnesota with the Black Hills and Yellowstone National Park. In Chicago's Northwest Suburbs, it is known as Northwest Highway due to its direction as well as it paralleling the old Chicago and North Western railroad It was called the Northwest Highway from Chicago to New Ulm and some street signs in New Ulm and towns in between still show the old designation. From Ucross west to Sheridan, Wyoming, US 14 was designated U. S. Route 116 in 1926. US 116 was extended west to Cody in 1933, absorbing the Deaver-Cody US 420.
The next year, US 116 became an extension of US 14. Part of this extension, including all of US 420, is now US 14A. Wyoming US 16 / US 20 at the East Entrance to Yellowstone National Park, southeast of Pahaska Tepee; the highways travel concurrently to Greybull. US 310 west-northwest of Greybull I‑90 / US 87 northe
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
Wyoming is a state in the mountain region of the western United States. The state is the 10th largest by area, the least populous, the second most sparsely populated state in the country. Wyoming is bordered on the north by Montana, on the east by South Dakota and Nebraska, on the south by Colorado, on the southwest by Utah, on the west by Idaho and Montana; the state population was estimated at 577,737 in 2018, less than 31 of the most populous U. S. cities including Denver in neighboring Colorado. Cheyenne is the state capital and the most populous city, with an estimated population of 63,624 in 2017; the western two-thirds of the state is covered by the mountain ranges and rangelands of the Rocky Mountains, while the eastern third of the state is high elevation prairie called the High Plains. Half of the land in Wyoming is owned by the U. S. government, leading Wyoming to rank sixth by area and fifth by proportion of a state's land owned by the federal government. Federal lands include two national parks—Grand Teton and Yellowstone—two national recreation areas, two national monuments, several national forests, historic sites, fish hatcheries, wildlife refuges.
Original inhabitants of the region include the Crow, Arapaho and Shoshone. Southwestern Wyoming was in the Spanish Empire and Mexican territory until it was ceded to the United States in 1848 at the end of the Mexican–American War; the region acquired the name Wyoming when a bill was introduced to the U. S. Congress in 1865 to provide a "temporary government for the territory of Wyoming"; the name was used earlier for the Wyoming Valley in Pennsylvania, is derived from the Munsee word xwé:wamənk, meaning "at the big river flat". The main drivers of Wyoming's economy are mineral extraction—mostly coal, natural gas, trona—and tourism. Agricultural commodities include livestock, sugar beets and wool; the climate is semi-arid and continental and windier than the rest of the U. S. with greater temperature extremes. Wyoming has been a politically conservative state since the 1950s, with the Republican Party candidate winning every presidential election except 1964. Wyoming's climate is semi-arid and continental, is drier and windier in comparison to most of the United States with greater temperature extremes.
Much of this is due to the topography of the state. Summers in Wyoming are warm with July high temperatures averaging between 85 and 95 °F in most of the state. With increasing elevation, this average drops with locations above 9,000 feet averaging around 70 °F. Summer nights throughout the state are characterized by a rapid cooldown with the hottest locations averaging in the 50–60 °F range at night. In most of the state, most of the precipitation tends to fall in early summer. Winters are cold, but are variable with periods of sometimes extreme cold interspersed between mild periods, with Chinook winds providing unusually warm temperatures in some locations. Wyoming is a dry state with much of the land receiving less than 10 inches of rainfall per year. Precipitation depends on elevation with lower areas in the Big Horn Basin averaging 5–8 inches; the lower areas in the North and on the eastern plains average around 10–12 inches, making the climate there semi-arid. Some mountain areas do receive a good amount of precipitation, 20 inches or more, much of it as snow, sometimes 200 inches or more annually.
The state's highest recorded temperature is 114 °F at Basin on July 12, 1900 and the lowest recorded temperature is −66 °F at Riverside on February 9, 1933. The number of thunderstorm days vary across the state with the southeastern plains of the state having the most days of thunderstorm activity. Thunderstorm activity in the state is highest during early summer; the southeastern corner of the state is the most vulnerable part of the state to tornado activity. Moving away from that point and westwards, the incidence of tornadoes drops with the west part of the state showing little vulnerability. Tornadoes, where they occur, tend to be small and brief, unlike some of those that occur farther east; as specified in the designating legislation for the Territory of Wyoming, Wyoming's borders are lines of latitude 41°N and 45°N, longitude 104°3'W and 111°3'W, making the shape of the state a latitude-longitude quadrangle. Wyoming is one of only three states to have borders along only straight latitudinal and longitudinal lines, rather than being defined by natural landmarks.
Due to surveying inaccuracies during the 19th century, Wyoming's legal border deviates from the true latitude and longitude lines by up to half of a mile in some spots in the mountainous region along the 45th parallel. Wyoming is bordered on the north by Montana, on the east by South Dakota and Nebraska, on the south by Colorado, on the southwest by Utah, on the west by Idaho, it is the tenth largest state in the United States in total area, containing 97,814 square miles and is made up of 23 counties. From the north border to the south border it is 276 miles; the Great Plains meet the Rocky Mountains in Wyoming. The state is a great plateau broken by many mountain ranges. Surface elevations range from the summit of Gannett Peak in the Wind River Mountain Range, at 13,804 feet, to the Belle Fourche River val
Interstate 90 is an east–west transcontinental freeway, the longest Interstate Highway in the United States at 3,020.54 miles. Its western terminus is in Seattle, at State Route 519 near T-Mobile Park and CenturyLink Field, its eastern terminus is in Boston, at Route 1A near Logan International Airport; the western portion of I-90 crosses the Continental Divide over Homestake Pass just east of Butte, connecting major cities such as Spokane, Washington. Between Seattle and the Wisconsin-Illinois state line, I-90 is a toll-free Interstate. East of that border, much of I-90 follows several toll roads, many of which predate the Interstate Highway system; these include the Jane Addams Memorial Tollway, Chicago Skyway, Indiana Toll Road, Ohio Turnpike, New York State Thruway, the Massachusetts Turnpike. The Interstate is not tolled through some segments in downtown Chicago; the western I-90 terminus is in the SoDo neighborhood of Seattle. I-90 eastbound begins at exit 2B, Edgar Martínez Drive S and 4th Avenue S. I-90 westbound exit 2B ends at Edgar Martínez Dr and 4th Ave near T-Mobile Park, as well as 4th Ave just north of S.
Royal Brougham Way near CenturyLink Field, about a block east of the entrance to the Port of Seattle's container shipping terminal at Pier 46. The tunnel that carries I-90 under the Mount Baker Ridge is on the National Register of Historic Places; the east portal of the tunnel is constructed as a bas relief concrete sculpture. I-90 incorporates two of the longest floating bridges in the world, the Lacey V. Murrow Memorial Bridge and the Homer M. Hadley Memorial Bridge, which cross Lake Washington from Seattle to Mercer Island, they are the fifth longest such bridges, respectively. Forty miles east of Bellevue, I-90 traverses the Cascade Range's Snoqualmie Pass, elevation 3,022 feet, it intersects I-82 shortly after exiting the mountains and crosses the Columbia River on the Vantage Bridge at mile post 137. After entering Spokane near mile post 279, it enters Idaho eighteen miles later. Since 1980, I-90 from Seattle to Thorp was designated the Mountains to Sound Greenway to protect its outstanding scenic and cultural resources.
The Washington section of I-90 is defined in the Revised Code of Washington. The small town of Wallace still prides itself on having what was the last stop light in the Rocky Mountains on I-90, its downtown has many historical buildings, which would have been wiped out by the original planned route of the freeway, so in 1976, city leaders had the downtown placed on the National Register of Historic Places. As a result, the federal government was forced, at great expense, to reroute the freeway to the northern edge of downtown and elevate it; that section of I-90 opened in September 1991. A bicycle path is routed beneath part of that segment. In the period between 1995 and 1999, there was no numbered speed limit on I-90 in Montana; the speed limit was defined as "reasonable and prudent" as determined on a case-by-case basis by the Montana Highway Patrol. The speed limit in Montana is now 80 mph. From the west I-90 enters Montana on the summit of Lookout Pass, it passes next to Missoula and runs through Butte, where it connects with I-15 for close to eight miles, before crossing the continental divide just east of Butte where it goes over Homestake Pass, 6,329 feet in elevation, the highest point for the Interstate.
It passes between the Gallatin and Bridger mountain ranges over Bozeman Pass between Bozeman and Livingston. It follows the Yellowstone River from Livingston to Billings where it connects the suburbs of Laurel and Lockwood with the rest of the Billings area. In Lockwood it turns south. South of Hardin it passes the site of the Battle of the Little Bighorn at Crow Agency on the Crow Indian Reservation. Montana boasts the longest stretch of I-90. I-90 enters the state of Wyoming from the north after splitting off from I-94 in Montana; the first major town is Sheridan. It follows the foothills of the Bighorn Mountains between Sheridan and Buffalo where it intersects with I-25, where the route goes from a north–south orientation to an east–west orientation, it goes across the Powder River Basin toward Gillette and Sundance where it shares alignments with both US 14 and US 16. Near the Black Hills, I-90 leaves Wyoming and enters South Dakota between Sundance and Spearfish, South Dakota where it proceeds southeast toward Rapid City, South Dakota.
Near Rapid City at the Wyoming border I-90 is a four-lane divided highway with a grass median. In the Sioux Falls area, I-90 continues east a short distance to Minnesota. I-90 is the longest east–west thoroughfare in South Dakota; this interstate goes through Mitchell, Sioux Falls, Rapid City. It does not go through the state capital of Pierre; the South Dakota section of I-90 is defined at South Dakota Codified Laws § 31-4-184. The Minnesota section of I-90 is defined as Route 391 in Minnesota Statutes § 161.12. I-90 crosses southern Minnesota from the South Dakota border near Beaver Creek, Minnesota, to the Mississippi River near La Crosse, Wisconsin. On most of its length in the state, it is close to the Iowa border and parallel with it. In southeast Minnesota, it curves north to Winona; the wayside rest area near Blue Earth, Minnesota is where Minnesota's east-building and
A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in Canada, Romania and the United States. County towns have a similar function in the United Kingdom and Republic of Ireland, in Jamaica. In most of the United States, counties are the political subdivisions of a state; the city, town, or populated place that houses county government is known as the seat of its respective county. The county legislature, county courthouse, sheriff's department headquarters, hall of records and correctional facility are located in the county seat though some functions may be located or conducted in other parts of the county if it is geographically large. A county seat is but not always, an incorporated municipality; the exceptions include the county seats of counties that have no incorporated municipalities within their borders, such as Arlington County, Virginia. Ellicott City, the county seat of Howard County, is the largest unincorporated county seat in the United States, followed by Towson, the county seat of Baltimore County, Maryland.
Some county seats may not be incorporated in their own right, but are located within incorporated municipalities. For example, Cape May Court House, New Jersey, though unincorporated, is a section of Middle Township, an incorporated municipality. In some of the colonial states, county seats include or included "Court House" as part of their name. In the Canadian provinces of Prince Edward Island, New Brunswick, Nova Scotia, the term "shire town" is used in place of county seat. County seats in Taiwan are the administrative centers of the counties. There are 13 county seats in Taiwan, which are in the forms of county-administered city, urban township or rural township. Most counties have only one county seat. However, some counties in Alabama, Georgia, Kentucky, Mississippi, New Hampshire, New York, Vermont have two or more county seats located on opposite sides of the county. An example is Harrison County, which lists both Biloxi and Gulfport as county seats; the practice of multiple county seat towns dates from the days.
There have been few efforts to eliminate the two-seat arrangement, since a county seat is a source of pride for the towns involved. There are 36 counties with multiple county seats in 11 states: Coffee County, Alabama St. Clair County, Alabama Arkansas County, Arkansas Carroll County, Arkansas Clay County, Arkansas Craighead County, Arkansas Franklin County, Arkansas Logan County, Arkansas Mississippi County, Arkansas Prairie County, Arkansas Sebastian County, Arkansas Yell County, Arkansas Columbia County, Georgia Lee County, Iowa Campbell County, Kentucky Kenton County, Kentucky Essex County, Massachusetts Middlesex County, Massachusetts Plymouth County, Massachusetts Bolivar County, Mississippi Carroll County, Mississippi Chickasaw County, Mississippi Harrison County, Mississippi Hinds County, Mississippi Jasper County, Mississippi Jones County, Mississippi Panola County, Mississippi Tallahatchie County, Mississippi Yalobusha County, Mississippi Jackson County, Missouri Hillsborough County, New Hampshire Seneca County, New York Bennington County, Vermont In New England, the town, not the county, is the primary division of local government.
Counties in this region have served as dividing lines for the states' judicial systems. Connecticut and Rhode Island have no county level of thus no county seats. In Vermont and Maine the county seats are designated shire towns. County government consists only of a Superior Court and Sheriff, both located in the respective shire town. Bennington County has two shire towns. In Massachusetts, most government functions which would otherwise be performed by county governments in other states are performed by town or city governments; as such, Massachusetts has dissolved many of its county governments, the state government now operates the registries of deeds and sheriff's offices in those counties. In Virginia, a county seat may be an independent city surrounded by, but not part of, the county of which it is the administrative center. Two counties in South Dakota have their county seat and government services centered in a neighboring county, their county-level services are provided by Fall River Tripp County, respectively.
In Louisiana, divided into parishes rather than counties, county seats are referred to as parish seats. Alaska is divided into boroughs rather than counties; the Unorganized Borough, which covers 49 % of Alaska's area, has equivalent. The state with the most counties is Texas, with 254, the state with the fewest counties is Delaware, with 3. County seat war Administrative center County town, administrative centres in Ireland and the UK Chef-lieu, administrative centres in Algeria, Luxembourg, France and Tunisia Municipality, equivalent to county in many c