Geography Of Kansas
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The U.S. state of Kansas is bordered by
Nebraska Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...
to the north;
Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
to the east;
Oklahoma Oklahoma ( ; Choctaw language, Choctaw: , ) is a landlocked U.S. state, state in the South Central United States, South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northea ...
to the south; and
Colorado Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
to the west. The state is divided into 105 counties with 628 cities, with its largest county by area being Butler County. Kansas is located equidistant from the Pacific and Atlantic oceans. The geographic center of the 48 contiguous states is in Smith County near
Lebanon Lebanon, officially the Republic of Lebanon, is a country in the Levant region of West Asia. Situated at the crossroads of the Mediterranean Basin and the Arabian Peninsula, it is bordered by Syria to the north and east, Israel to the south ...
. Until 1989, the Meades Ranch Triangulation Station in Osborne County was the geodetic center of North America: the central reference point for all maps of North America. According to the Kansas Geological Survey, the geographic center of Kansas is near Bushton in northwest Rice County.


Geology and topography

Kansas is underlain by a sequence of horizontal to gently westward dipping
sedimentary rock Sedimentary rocks are types of rock (geology), rock formed by the cementation (geology), cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or de ...
s. A sequence of Mississippian, Pennsylvanian and
Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ...
rocks outcrop in the eastern and southern part of the state. The state's western half has exposures of
Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
through Tertiary sediments, the latter derived from the
erosion Erosion is the action of surface processes (such as Surface runoff, water flow or wind) that removes soil, Rock (geology), rock, or dissolved material from one location on the Earth's crust#Crust, Earth's crust and then sediment transport, tran ...
of the uplifted
Rocky Mountains The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
to the west. These are underlain by older Paleozoic and Mesozoic sediments which correlate well with the outcrops to the east. The state's northeastern corner was subjected to
glaciation A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate be ...
in the
Pleistocene The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fin ...
and is covered by glacial drift and
loess A loess (, ; from ) is a clastic rock, clastic, predominantly silt-sized sediment that is formed by the accumulation of wind-blown dust. Ten percent of Earth's land area is covered by loesses or similar deposition (geology), deposits. A loess ...
. Kansas has been divided into eleven different physiographic regions. The western two-thirds of the state, lying in the great central plain of the United States, has a generally flat or undulating surface, while the eastern third has many hills and forests. The land gradually rises from east to west; its altitude ranges from along the Verdigris River at Coffeyville in Montgomery County, to at Mount Sunflower, from the Colorado border, in Wallace County. It is a common misconception that Kansas is the flattest state in the nation—in 2003, a tongue-in-cheek study famously declared the state "flatter than a pancake". In fact, Kansas has a maximum topographic relief of , making it the 23rd flattest U.S. state measured by maximum relief.


Features


Rivers

Nearly of the state's northeastern boundary is defined by the
Missouri River The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...
. The
Kansas River The Kansas River, also known as the Kaw, is a meandering river in northeastern Kansas in the United States. It is potentially the southwestern most part of the Missouri River drainage, which is sometimes in turn the northwesternmost portion of ...
(locally known as the Kaw), formed by the junction of the Smoky Hill and Republican rivers at appropriately-named Junction City, joins the Missouri River at
Kansas City The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more t ...
, after a course of across the northeastern part of the state. The
Arkansas River The Arkansas River is a major tributary of the Mississippi River. It generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's source basin lies in Colorado, specifically ...
( pronunciation varies), rising in
Colorado Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
, flows with a bending course for nearly across the western and southern parts of the state. With its tributaries, (the Little Arkansas, Ninnescah, Walnut, Cow Creek, Cimarron, Verdigris, and the Neosho), it forms the southern drainage system of the state. Kansas's other rivers are the Saline and Solomon Rivers, tributaries of the Smoky Hill River; the Big Blue,
Delaware Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...
, and Wakarusa, which flow into the Kansas River; and the Marais des Cygnes, a tributary of the Missouri River. Spring River is located between Riverton and Baxter Springs.


National parks and historic sites

Areas under the protection of the
National Park Service The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government, within the US Department of the Interior. The service manages all List ...
include: * Brown v. Board of Education National Historic Site in Topeka * California National Historic Trail * Fort Larned National Historic Site in Larned * Fort Scott National Historic Site * Lewis and Clark National Historic Trail * Nicodemus National Historic Site at
Nicodemus Nicodemus (; ; ; ; ) is a New Testament figure venerated as a saint in a number of Christian traditions. He is depicted as a Pharisee and a member of the Sanhedrin who is drawn to hear Jesus's teachings. Like Lazarus of Bethany, Lazarus, Nicode ...
*
Oregon National Historic Trail The Oregon Trail was a east–west, large-wheeled wagon route and Westward Expansion Trails, emigrant trail in North America that connected the Missouri River to valleys in Oregon Territory. The eastern part of the Oregon Trail crossed what ...
* Pony Express National Historic Trail * Santa Fe National Historic Trail *
Tallgrass Prairie National Preserve Tallgrass Prairie National Preserve is a United States National Preserve located in the Flint Hills region of Kansas, north of Strong City, Kansas, Strong City. The preserve protects a nationally significant example of the once vast tallgrass ...
near Strong City


Flora and fauna

In Kansas, there are currently 238 species of rare animals and 400 rare plants. Among those include: smooth rockcress, Virginia rail, Cleft Ledge, royal fern, turkey-tangle, bobolink, cave salamander,
peregrine falcon The peregrine falcon (''Falco peregrinus''), also known simply as the peregrine, is a Cosmopolitan distribution, cosmopolitan bird of prey (raptor) in the family (biology), family Falconidae renowned for its speed. A large, Corvus (genus), cro ...
, and black-footed ferrets. Common animal species and grasses include:
crow A crow is a bird of the genus ''Corvus'', or more broadly, a synonym for all of ''Corvus''. The word "crow" is used as part of the common name of many species. The related term "raven" is not linked scientifically to any certain trait but is rathe ...
s,
deer A deer (: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies Cervinae (which includes, among others, muntjac, elk (wapiti), red deer, and fallow deer) ...
, lesser prairie-chickens,
mice A mouse (: mice) is a small rodent. Characteristically, mice are known to have a pointed snout, small rounded ears, a body-length scaly tail, and a high breeding rate. The best known mouse species is the common house mouse (''Mus musculus' ...
, moles,
opossum Opossums () are members of the marsupial order Didelphimorphia () endemic to the Americas. The largest order of marsupials in the Western Hemisphere, it comprises 126 species in 18 genera. Opossums originated in South America and entered North A ...
,
prairie dog Prairie dogs (genus ''Cynomys'') are herbivorous burrowing Marmotini, ground squirrels native to the grasslands of North America. There are five recognized species of prairie dog: black-tailed prairie dog, black-tailed, white-tailed prairie dog ...
s,
raccoon The raccoon ( or , ''Procyon lotor''), sometimes called the North American, northern or common raccoon (also spelled racoon) to distinguish it from Procyonina, other species of raccoon, is a mammal native to North America. It is the largest ...
, eastern gamagrass, prairie dropseed, Indiangrass, little bluestem,
switchgrass ''Panicum virgatum'', commonly known as switchgrass, is a perennial warm season bunchgrass native to North America, where it occurs naturally from 55th parallel north, 55°N latitude in Canada southwards into the United States and Mexico. Switch ...
, northern wood-oats, upright sedge, sideoats grama, and
big bluestem ''Andropogon gerardi'', commonly known as big bluestem, is a species of tall grass native to much of the Great Plains and grassland regions of central and eastern North America. It is also known as tall bluestem, bluejoint, and turkeyfoot. Taxon ...
.


Climate

According to the
Köppen climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...
, Kansas's climate can be characterized in terms of three types: it has humid continental, semi-arid steppe, and humid subtropical. The eastern two-thirds of the state (especially the northeastern portion) has a
humid continental climate A humid continental climate is a climatic region defined by Russo-German climatologist Wladimir Köppen in 1900, typified by four distinct seasons and large seasonal temperature differences, with warm to hot (and often humid) summers, and cold ...
, with cool to cold winters and hot, often humid summers. Most of the precipitation falls during both the summer and the spring. The western third of the state—from roughly the U.S. Route 83 corridor westward—has a
semi-arid A semi-arid climate, semi-desert climate, or steppe climate is a aridity, dry climate sub-type. It is located on regions that receive precipitation below Evapotranspiration#Potential evapotranspiration, potential evapotranspiration, but not as l ...
steppe In physical geography, a steppe () is an ecoregion characterized by grassland plains without closed forests except near rivers and lakes. Steppe biomes may include: * the montane grasslands and shrublands biome * the tropical and subtropica ...
climate. Summers are hot, often very hot, and generally less humid. Winters are highly changeable between warm and very cold. The western region receives an average of about of precipitation per year.
Chinook wind Chinook winds, or simply Chinooks, are two types of prevailing warm, generally westerly winds in western North America: Coastal Chinooks and interior Chinooks. The coastal Chinooks are persistent seasonal, wet, southwesterly winds blowing in from ...
s in the winter can warm western Kansas all the way into the range. The south-central and southeastern portions of the state, including the Wichita area, have a
humid subtropical climate A humid subtropical climate is a subtropical -temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between ...
with hot and humid summers, milder winters, and more precipitation than elsewhere in Kansas. Some features of all three climates can be found in most of the state, with droughts and changeable weather between dry and humid not uncommon, and both warm and cold spells in the winter. Temperatures in areas between U.S. Routes 83 and 81, as well as the southwestern portion of the state along and south of U.S. 50, reach or above on most days of June, July, and August. High humidity added to the high temperatures sends the
heat index The heat index (HI) is an index that combines air temperature and relative humidity, in shade (shadow), shaded areas, to posit a human-perceived equivalent temperature, as how hot it would feel if the humidity were some other value in the Shade (s ...
into life-threatening territory, especially in Wichita, Hutchinson, Salina, Russell, Hays, and Great Bend. Temperatures are often higher in Dodge City, Garden City, and Liberal, but the heat index in those three cities is usually lower than the actual air temperature. Although temperatures of or higher are not as common in areas east of U.S. 81, higher humidity and the
urban heat island Urban areas usually experience the urban heat island (UHI) effect; that is, they are significantly warmer than surrounding rural areas. The temperature difference is usually larger at night than during the day, and is most apparent when winds ar ...
effect lead most summer days to heat indices between and in Topeka, Lawrence, and the
Kansas City metropolitan area The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more t ...
. Also, combined with humidity between 85 and 95 percent, dangerous heat indices can be experienced at every hour of the day. Precipitation ranges from about annually in the state's southeast corner to about in the southwest. Snowfall ranges from around in the fringes of the south, to in the far northwest. Frost-free days range from more than 200 days in the south, to 130 days in the northwest. Thus, Kansas is the country's ninth or tenth sunniest state, depending on the source. Western Kansas is as sunny as parts of
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
and
Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
. Kansas is prone to severe weather, especially in the spring and the early-summer. Despite the frequent sunshine throughout much of the state, due to its location at a climatic boundary prone to intrusions of multiple air masses, the state is vulnerable to strong and severe thunderstorms. Some of these storms become
supercell A supercell is a thunderstorm characterized by the presence of a mesocyclone, a deep, persistently rotating updraft. Due to this, these storms are sometimes referred to as rotating thunderstorms. Of the four classifications of thunderstorms (su ...
thunderstorms; these can produce some
tornado A tornado is a violently rotating column of air that is in contact with the surface of Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the ...
es, occasionally those of EF3 strength or higher. Kansas averages more than 50 tornadoes annually. Severe thunderstorms sometimes drop some very large
hail Hail is a form of solid Precipitation (meteorology), precipitation. It is distinct from ice pellets (American English "sleet"), though the two are often confused. It consists of balls or irregular lumps of ice, each of which is called a hailsto ...
over Kansas as well. Furthermore, these storms can even bring in flash flooding and damaging straight line winds. According to NOAA, the all-time highest temperature recorded in Kansas is () on July 24, 1936, near Alton in Osborne County, and the all-time low is on February 13, 1905, near
Lebanon Lebanon, officially the Republic of Lebanon, is a country in the Levant region of West Asia. Situated at the crossroads of the Mediterranean Basin and the Arabian Peninsula, it is bordered by Syria to the north and east, Israel to the south ...
in Smith County. Alton and Lebanon are approximately apart. Kansas's record high of ties with
North Dakota North Dakota ( ) is a U.S. state in the Upper Midwest, named after the indigenous Dakota people, Dakota and Sioux peoples. It is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north and by the U.S. states of Minneso ...
for the fifth-highest record high in an American state, behind California (),
Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...
(),
Nevada Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
(), and
New Mexico New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...
().National Oceanic and Atmospheric Administration; tp://ftp.ncdc.noaa.gov/pub/data/special/location.pdf ‘Monthly State Maximum/Minimum Extremes’/ref>


Climate data


See also

* Geography of Nebraska *
Tallgrass prairie The tallgrass prairie is an ecosystem native to central North America. Historically, natural and Historical ecology#Anthropogenic fire, anthropogenic fire, as well as grazing by large mammals (primarily bison) provided periodic disturbances to th ...
*
Tornado Alley Tornado Alley, also known as Tornado Valley, is a loosely defined location of the central United States and, in the 21st century, Canada where tornadoes are most frequent. The term was first used in 1952 as the title of a research project to st ...
*
Geography of Oklahoma The Geography of Oklahoma encompasses terrain and ecosystems ranging from arid plains to subtropical forests and mountains. Oklahoma contains 10 distinct ecoregion, ecological regions, more per square mile than in any other state by a wide mar ...
*
Geography of Colorado The geography of the U.S. State of Colorado is diverse, encompassing rugged mountainous terrain, vast plains, desert lands, desert canyons, and mesas. Colorado is a landlocked U.S. state. In 1861, the United States Congress defined the boun ...


References

{{notelist Geography of Kansas