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65-502: South-Central Colorado is a region of the U.S. state of Colorado . It can be roughly defined by Chaffee County in the northwest, El Paso County in the northeast, Las Animas County in the southeast, and Conejos County in the southwest. Some notable towns and cities there include Colorado Springs , Pueblo , Cripple Creek , Cañon City , Salida , Buena Vista , Monte Vista , Alamosa , Walsenburg , and Trinidad . The landscapes of South-Central Colorado were made known to

130-785: A Field Marshal or General of the Army (US five stars), or Generalissimo (Soviet Union); and in the US Armed Forces an Admiral (typically four stars) may also command a region. Due to the large size of this formation, its use is rarely employed. Some of the very few examples of an Army Region are each of the Eastern, Western, and southern (mostly in Italy) fronts in Europe during World War II . The military map unit symbol for this echelon of formation (see Military organization and APP-6A )

195-427: A hierarchical pattern . Other terms for a drainage basin are catchment area , catchment basin , drainage area , river basin , water basin , and impluvium . In North America, they are commonly called a watershed , though in other English-speaking places, "watershed" is used only in its original sense, that of the drainage divide line. A drainage basin's boundaries are determined by watershed delineation ,

260-437: A common task in environmental engineering and science. In a closed drainage basin, or endorheic basin , rather than flowing to the ocean, water converges toward the interior of the basin, known as a sink , which may be a permanent lake, a dry lake , or a point where surface water is lost underground . Drainage basins are similar but not identical to hydrologic units , which are drainage areas delineated so as to nest into

325-665: A cultural region. Examples of natural resource regions are the Rumaila Field , the oil field that lies along the border or Iraq and Kuwait and played a role in the Gulf War ; the Coal Region of Pennsylvania, which is a historical region as well as a cultural, physical, and natural resource region; the South Wales Coalfield , which like Pennsylvania's coal region is a historical, cultural, and natural region;

390-454: A drainage basin, and there are different ways to interpret that data. In the unlikely event that the gauges are many and evenly distributed over an area of uniform precipitation, using the arithmetic mean method will give good results. In the Thiessen polygon method, the drainage basin is divided into polygons with the rain gauge in the middle of each polygon assumed to be representative for

455-540: A drainage boundary is referred to as watershed delineation . Finding the area and extent of a drainage basin is an important step in many areas of science and engineering. Most of the water that discharges from the basin outlet originated as precipitation falling on the basin. A portion of the water that enters the groundwater system beneath the drainage basin may flow towards the outlet of another drainage basin because groundwater flow directions do not always match those of their overlying drainage network. Measurement of

520-416: A functional region. Nodal regions, functional urban regions, daily urban systems, local labour-market areas (LLMAs), or travel-to-work areas (TTWAs) are considered to be special instances of a general functional region that need to fulfil some specific conditions regarding, for instance, the character of the region-organising interaction or the presence of urban cores, (Halas et al., 2015 ). In military usage,

585-536: A lesser degree, regions in the sphere of influence of Greater New England, "Acadia" (Nova Scotia), "Newfoundland and The Fishery/The Banks". Other examples of historical regions are Iroquoia, Ohio Country , Illinois Country , and Rupert's Land . In Russia , historical regions include Siberia and the Russian North , as well as the Ural Mountains . These regions had an identity that developed from

650-602: A multi-level hierarchical drainage system . Hydrologic units are defined to allow multiple inlets, outlets, or sinks. In a strict sense, all drainage basins are hydrologic units but not all hydrologic units are drainage basins. About 48.71% of the world's land drains to the Atlantic Ocean . In North America , surface water drains to the Atlantic via the Saint Lawrence River and Great Lakes basins,

715-508: A number of countries have borrowed the term as the formal name for a type of subnational entity (e.g., the región , used in Chile ). In English, the word is also used as the conventional translation for equivalent terms in other languages (e.g., the область ( oblast ), used in Russia alongside a broader term регион ). The following countries use the term "region" (or its cognate ) as

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780-418: A region is shorthand for the name of a military formation larger than an Army Group and smaller than a Theater . The full name of the military formation is Army Region. The size of an Army Region can vary widely but is generally somewhere between about 1 million and 3 million soldiers. Two or more Army Regions could make up a Theater. An Army Region is typically commanded by a full General (US four stars),

845-529: A significant percentage of their respective continental land area. To a large extent, major continental regions are mental constructs created by considering an efficient way to define large areas of the continents. For the most part, the images of the world are derived as much from academic studies, from all types of media, or from personal experience of global exploration . They are a matter of collective human knowledge of their own planet and are attempts to better understand their environments. Regional geography

910-658: A similar way, as does Romania and Venezuela . The government of Singapore makes use of the term " region " for its own administrative purposes. The following countries use an administrative subdivision conventionally referred to as a region in English: China has five 自治区 ( zìzhìqū ) and two 特別行政區 (or 特别行政区; tèbiéxíngzhèngqū ), which are translated as " autonomous region " and " special administrative region ", respectively. There are many relatively small regions based on local government agencies such as districts, agencies, or regions. In general, they are all regions in

975-625: A sort of social and political polity . The term Muslim world is sometimes used to refer to the region of the world where Islam is dominant. These broad terms are somewhat vague when used to describe regions. Within some religions there are clearly defined regions. The Roman Catholic Church , the Church of England , the Eastern Orthodox Church , and others, define ecclesiastical regions with names such as diocese , eparchy , ecclesiastical provinces , and parish . For example,

1040-454: Is a branch of geography that studies regions of all sizes across the Earth . It has a prevailing descriptive character. The main aim is to understand or define the uniqueness or character of a particular region, which consists of natural as well as human elements. Attention is paid also to regionalization, which covers the proper techniques of space delimitation into regions. Regional geography

1105-655: Is a term used in environmental geography , cultural region in cultural geography , bioregion in biogeography , and so on. The field of geography that studies regions themselves is called regional geography . Regions are an area or division, especially part of a country or the world having definable characteristics but not always fixed boundaries. In the fields of physical geography , ecology , biogeography , zoogeography , and environmental geography , regions tend to be based on natural features such as ecosystems or biotopes , biomes , drainage basins , natural regions , mountain ranges , soil types . Where human geography

1170-477: Is also considered as a certain approach to study in geographical sciences (similar to quantitative or critical geographies ; for more information, see history of geography ). Human geography is a branch of geography that focuses on the study of patterns and processes that shape human interaction with various discrete environments. It encompasses human , political , cultural , social , and economic aspects among others that are often clearly delineated. While

1235-418: Is an area of land in which all flowing surface water converges to a single point, such as a river mouth , or flows into another body of water , such as a lake or ocean . A basin is separated from adjacent basins by a perimeter, the drainage divide , made up of a succession of elevated features, such as ridges and hills . A basin may consist of smaller basins that merge at river confluences , forming

1300-401: Is concerned, the regions and subregions are described by the discipline of ethnography . Global regions are distinguishable from space, and are therefore clearly distinguished by the two basic terrestrial environments, land and water . However, they have been generally recognized as such much earlier by terrestrial cartography because of their impact on human geography. They are divided into

1365-714: Is currently a controversial proposal to divide the rest of Sweden into large regions , replacing the current counties. The government of the Philippines uses the term "region" (in Filipino , rehiyon ) when it is necessary to group provinces, the primary administrative subdivision of the country. This is also the case in Brazil , which groups its primary administrative divisions ( estados ; "states") into grandes regiões ( greater regions ) for statistical purposes, while Russia uses экономические районы ( economic regions ) in

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1430-453: Is giving spatial understanding of mediated image. [REDACTED] Africa [REDACTED] Antarctica [REDACTED] Asia [REDACTED] Australia [REDACTED] Europe [REDACTED] North America [REDACTED] South America [REDACTED] Afro-Eurasia [REDACTED] Americas [REDACTED] Eurasia [REDACTED] Oceania Drainage basin A drainage basin

1495-421: Is identified with six Xs. Media geography is a spatio-temporal understanding, brought through different gadgets of media, nowadays, media became inevitable at different proportions and everyone supposed to consumed at different gravity. The spatial attributes are studied with the help of media outputs in shape of images which are contested in nature and pattern as well where politics is inseparable. Media geography

1560-432: Is not an abstract spatial concept, but to a certain extent it can be regarded as a reflection of the spatial behaviour of individuals in a geographic space. The functional region is conceived as a general concept while its inner structure, inner spatial flows, and interactions need not necessarily show any regular pattern, only selfcontainment. The concept of self-containment remains the only crucial defining characteristic of

1625-487: Is referred to as " watershed management ". In Brazil , the National Policy of Water Resources, regulated by Act n° 9.433 of 1997, establishes the drainage basin as the territorial division of Brazilian water management. When a river basin crosses at least one political border, either a border within a nation or an international boundary, it is identified as a transboundary river . Management of such basins becomes

1690-614: Is the Dead Sea . Drainage basins have been historically important for determining territorial boundaries, particularly in regions where trade by water has been important. For example, the English crown gave the Hudson's Bay Company a monopoly on the fur trade in the entire Hudson Bay basin, an area called Rupert's Land . Bioregional political organization today includes agreements of states (e.g., international treaties and, within

1755-713: The African Great Lakes , the interiors of Australia and the Arabian Peninsula , and parts in Mexico and the Andes . Some of these, such as the Great Basin, are not single drainage basins but collections of separate, adjacent closed basins. In endorheic bodies of water where evaporation is the primary means of water loss, the water is typically more saline than the oceans. An extreme example of this

1820-498: The American Old West . As the home of two of Colorado's large metropolitan areas (Colorado Springs and Pueblo), South-Central Colorado is also home to several institutions of higher education: This Colorado state location article is a stub . You can help Misplaced Pages by expanding it . Region Apart from the global continental regions, there are also hydrospheric and atmospheric regions that cover

1885-607: The Eastern Seaboard of the United States, the Canadian Maritimes , and most of Newfoundland and Labrador . Nearly all of South America east of the Andes also drains to the Atlantic, as does most of Western and Central Europe and the greatest portion of western Sub-Saharan Africa , as well as Western Sahara and part of Morocco . The two major mediterranean seas of the world also flow to

1950-826: The Grand Banks . He rejects regions traditionally used in describing American history, like New France , "West Indies", the Middle Colonies , and the individual colonies themselves ( Province of Maryland , for example). Instead he writes of "discrete colonization areas", which may be named after colonies but rarely adhere strictly to political boundaries. Among other historic regions of this type, he writes about "Greater New England" and its major sub-regions of "Plymouth", "New Haven shores" (including parts of Long Island), "Rhode Island" (or "Narragansett Bay"), "the Piscataqua", "Massachusetts Bay", "Connecticut Valley", and to

2015-554: The Kuznetsk Basin , a similarly important coal mining region in Russia; Kryvbas , the economic and iron ore mining region of Ukraine; and the James Bay Project , a large region of Quebec where one of the largest hydroelectric systems in the world has been developed. Sometimes a region associated with a religion is given a name, like Christendom , a term with medieval and renaissance connotations of Christianity as

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2080-1057: The Metropolitan Water Reclamation District of Greater Chicago , the Las Vegas-Clark County Library District , the Metropolitan Police Service of Greater London , as well as other local districts like the York Rural Sanitary District , the Delaware River Port Authority , the Nassau County Soil and Water Conservation District , and C-TRAN . The traditional territorial divisions of some countries are also commonly rendered in English as "regions". These informal divisions do not form

2145-735: The Mississippi (3.22 million km ), and the Río de la Plata (3.17 million km ). The three rivers that drain the most water, from most to least, are the Amazon, Ganges , and Congo rivers. Endorheic basin are inland basins that do not drain to an ocean. Endorheic basins cover around 18% of the Earth's land. Some endorheic basins drain to an Endorheic lake or Inland sea . Many of these lakes are ephemeral or vary dramatically in size depending on climate and inflow. If water evaporates or infiltrates into

2210-756: The Nile River ), Southern , Central, and Eastern Europe , Turkey , and the coastal areas of Israel , Lebanon , and Syria . The Arctic Ocean drains most of Western Canada and Northern Canada east of the Continental Divide , northern Alaska and parts of North Dakota , South Dakota , Minnesota , and Montana in the United States, the north shore of the Scandinavian peninsula in Europe, central and northern Russia, and parts of Kazakhstan and Mongolia in Asia , which totals to about 17% of

2275-579: The Northwest European Atlantic Protestant Region , which includes sub-regions such as the "Western Channel Community", which itself is made of sub-regions such as the English West Country of Cornwall , Devon , Somerset , and Dorset . In describing historic regions of America, Meinig writes of "The Great Fishery" off the coast of Newfoundland and New England, an oceanic region that includes

2340-515: The United Kingdom 's Lake District and California's Wine Country . great plains region Natural resources often occur in distinct regions. Natural resource regions can be a topic of physical geography or environmental geography, but also have a strong element of human geography and economic geography. A coal region, for example, is a physical or geomorphological region, but its development and exploitation can make it into an economic and

2405-778: The Western world by the explorations of Zebulon Pike and Kit Carson , who were later followed by settlers , many of whom came by the Santa Fe Trail . The upper tributaries of the Arkansas River and South Platte River provide ample whitewater rafting and are famous for trout and bass fishing in scenic settings such as Royal Gorge . Much of the local economic system is dependent on mining , forestry , ranching , and tourism related to these endeavors. South-Central Colorado has so far largely escaped urbanization , allowing visitors to experience something of

2470-479: The oceans , and discrete climates above the land and water masses of the planet. The land and water global regions are divided into subregions geographically bounded by large geological features that influence large-scale ecologies, such as plains and features. As a way of describing spatial areas, the concept of regions is important and widely used among the many branches of geography, each of which can describe areas in regional terms. For example, ecoregion

2535-789: The Andes. The Indian Ocean 's drainage basin also comprises about 13% of Earth's land. It drains the eastern coast of Africa, the coasts of the Red Sea and the Persian Gulf , the Indian subcontinent , Burma, and most parts of Australia . The five largest river basins (by area), from largest to smallest, are those of the Amazon (7 million km ), the Congo (4 million km ), the Nile (3.4 million km ),

2600-726: The Atlantic. The Caribbean Sea and Gulf of Mexico basin includes most of the U.S. interior between the Appalachian and Rocky Mountains , a small part of the Canadian provinces of Alberta and Saskatchewan , eastern Central America , the islands of the Caribbean and the Gulf, and a small part of northern South America. The Mediterranean Sea basin, with the Black Sea , includes much of North Africa , east-central Africa (through

2665-623: The US, interstate compacts ) or other political entities in a particular drainage basin to manage the body or bodies of water into which it drains. Examples of such interstate compacts are the Great Lakes Commission and the Tahoe Regional Planning Agency . In hydrology , the drainage basin is a logical unit of focus for studying the movement of water within the hydrological cycle . The process of finding

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2730-643: The United States is divided into 32 Roman Catholic ecclesiastical provinces . The Lutheran Church–Missouri Synod is organized into 33 geographic districts , which are subdivided into circuits (the Atlantic District (LCMS) , for example). The Church of Jesus Christ of Latter-day Saints uses regions similar to dioceses and parishes, but uses terms like ward and stake . In the field of political geography , regions tend to be based on political units such as sovereign states ; subnational units such as administrative regions, provinces , states (in

2795-769: The United States) , counties , townships , territories , etc.; and multinational groupings, including formally defined units such as the European Union , the Association of Southeast Asian Nations , and NATO , as well as informally defined regions such as the Third World , Western Europe , and the Middle East. The word "region" is taken from the Latin regio (derived from regere , 'to rule'), and

2860-534: The area and suggest a coherent tourism experience to visitors. Countries, states, provinces, and other administrative regions are often carved up into tourism regions to facilitate attracting visitors. Some of the more famous tourism regions based on historical or current administrative regions include Tuscany in Italy and Yucatán in Mexico. Famous examples of regions created by a government or tourism bureau include

2925-406: The basin, it can form tributaries that change the structure of the land. There are three different main types, which are affected by the rocks and ground underneath. Rock that is quick to erode forms dendritic patterns, and these are seen most often. The two other types of patterns that form are trellis patterns and rectangular patterns. Rain gauge data is used to measure total precipitation over

2990-578: The basis of the modern administrative divisions of these countries, but still define and delimit local regional identity and sense of belonging. Examples are: Functional regions are usually understood to be the areas organised by the horizontal functional relations (flows, interactions) that are maximised within a region and minimised across its borders so that the principles of internal cohesiveness and external separation regarding spatial interactions are met (see, for instance, Farmer and Fotheringham, 2011; Klapka, Halas, 2016; Smart, 1974 ). A functional region

3055-430: The discharge of water from a basin may be made by a stream gauge located at the basin's outlet. Depending on the conditions of the drainage basin, as rainfall occurs some of it seeps directly into the ground. This water will either remain underground, slowly making its way downhill and eventually reaching the basin, or it will permeate deeper into the soil and consolidate into groundwater aquifers. As water flows through

3120-441: The drainage area is dependent on the soil type. Certain soil types such as sandy soils are very free-draining, and rainfall on sandy soil is likely to be absorbed by the ground. However, soils containing clay can be almost impermeable and therefore rainfall on clay soils will run off and contribute to flood volumes. After prolonged rainfall even free-draining soils can become saturated , meaning that any further rainfall will reach

3185-697: The drainage basin to the mouth, and may accumulate there, disturbing the natural mineral balance. This can cause eutrophication where plant growth is accelerated by the additional material. Because drainage basins are coherent entities in a hydrological sense, it has become common to manage water resources on the basis of individual basins. In the U.S. state of Minnesota , governmental entities that perform this function are called " watershed districts ". In New Zealand, they are called catchment boards. Comparable community groups based in Ontario, Canada, are called conservation authorities . In North America, this function

3250-435: The early modern period and led to Siberian regionalism . A tourism region is a geographical region that has been designated by a governmental organization or tourism bureau as having common cultural or environmental characteristics. These regions are often named after a geographical, former, or current administrative region or may have a name created for tourism purposes. The names often evoke certain positive qualities of

3315-580: The general sense of being bounded spatial units. Examples include electoral districts such as Washington's 6th congressional district and Tennessee's 1st congressional district ; school districts such as Granite School District and Los Angeles Unified School District ; economic districts such as the Reedy Creek Improvement District ; metropolitan areas such as the Seattle metropolitan area , and metropolitan districts such as

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3380-435: The ground and along rivers it can pick up nutrients , sediment , and pollutants . With the water, they are transported towards the outlet of the basin, and can affect the ecological processes along the way as well as in the receiving water body . Modern use of artificial fertilizers , containing nitrogen (as nitrates ), phosphorus , and potassium , has affected the mouths of drainage basins. The minerals are carried by

3445-781: The ground at its terminus, the area can go by several names, such playa, salt flat, dry lake , or alkali sink . The largest endorheic basins are in Central Asia , including the Caspian Sea , the Aral Sea , and numerous smaller lakes. Other endorheic regions include the Great Basin in the United States, much of the Sahara Desert , the drainage basin of the Okavango River ( Kalahari Basin ), highlands near

3510-454: The largest of land regions, known as continents and the largest of water regions known as oceans . There are also significant regions that do not belong to either classification, such as archipelago regions that are littoral regions, or earthquake regions that are defined in geology . Continental regions are usually based on broad experiences in human history and attempt to reduce very large areas to more manageable regionalization for

3575-432: The major focus of human geography is not the physical landscape of the Earth (see physical geography ), it is hardly possible to discuss human geography without referring to the physical landscape on which human activities are being played out, and environmental geography is emerging as a link between the two. Regions of human geography can be divided into many broad categories: The field of historical geography involves

3640-604: The name of a type of subnational administrative unit: The Canadian province of Québec also uses the "administrative region" ( région administrative ). Scotland had local government regions from 1975 to 1996. In Spain the official name of the autonomous community of Murcia is Región de Murcia . Also, some single-province autonomous communities such as Madrid use the term región interchangeably with comunidad autónoma . Two län (counties) in Sweden are officially called 'regions': Skåne and Västra Götaland , and there

3705-469: The purpose of the study. As such they are conceptual constructs, usually lacking distinct boundaries. The oceanic division into maritime regions is used in conjunction with the relationship to the central area of the continent, using directions of the compass . Some continental regions are defined by the major continental feature of their identity, such as the Amazon basin , or the Sahara , which both occupy

3770-418: The rainfall on the area of land included in its polygon. These polygons are made by drawing lines between gauges, then making perpendicular bisectors of those lines form the polygons. The isohyetal method involves contours of equal precipitation are drawn over the gauges on a map. Calculating the area between these curves and adding up the volume of water is time-consuming. Isochrone maps can be used to show

3835-631: The responsibility of the countries sharing it. Nile Basin Initiative , OMVS for Senegal River , Mekong River Commission are a few examples of arrangements involving management of shared river basins. Management of shared drainage basins is also seen as a way to build lasting peaceful relationships among countries. The catchment is the most significant factor determining the amount or likelihood of flooding . Catchment factors are: topography , shape, size, soil type, and land use (paved or roofed areas). Catchment topography and shape determine

3900-461: The river rather than being absorbed by the ground. If the surface is impermeable the precipitation will create surface run-off which will lead to higher risk of flooding; if the ground is permeable, the precipitation will infiltrate the soil. Land use can contribute to the volume of water reaching the river, in a similar way to clay soils. For example, rainfall on roofs, pavements , and roads will be collected by rivers with almost no absorption into

3965-418: The speed with which the runoff reaches a river. A long thin catchment will take longer to drain than a circular catchment. Size will help determine the amount of water reaching the river, as the larger the catchment the greater the potential for flooding. It is also determined on the basis of length and width of the drainage basin. Soil type will help determine how much water reaches the river. The runoff from

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4030-425: The study of human history as it relates to places and regions , or the study of how places and regions have changed over time. D. W. Meinig , a historical geographer of America, describes many historical regions in his book The Shaping of America: A Geographical Perspective on 500 Years of History . For example, in identifying European "source regions" in early American colonization efforts, he defines and describes

4095-415: The time taken for rain to reach the river, while catchment size, soil type, and development determine the amount of water to reach the river. Generally, topography plays a big part in how fast runoff will reach a river. Rain that falls in steep mountainous areas will reach the primary river in the drainage basin faster than flat or lightly sloping areas (e.g., > 1% gradient). Shape will contribute to

4160-477: The time taken for runoff water within a drainage basin to reach a lake, reservoir or outlet, assuming constant and uniform effective rainfall. Drainage basins are the principal hydrologic unit considered in fluvial geomorphology . A drainage basin is the source for water and sediment that moves from higher elevation through the river system to lower elevations as they reshape the channel forms. Drainage basins are important in ecology . As water flows over

4225-789: The world's land. Just over 13% of the land in the world drains to the Pacific Ocean . Its basin includes much of China, eastern and southeastern Russia, Japan, the Korean Peninsula , most of Indochina, Indonesia and Malaysia, the Philippines, all of the Pacific Islands , the northeast coast of Australia , and Canada and the United States west of the Continental Divide (including most of Alaska), as well as western Central America and South America west of

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