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55-569: According to the Geographic Names Information System , the river has also been known as "Northa-Anna" and as the main stem of the Pamunkey River. The North Anna River is formed by a confluence of smaller streams in western Orange County and flows generally southeastwardly. The river's course is used to define all or portions of the southern boundaries of Orange, Spotsylvania and Caroline counties; and

110-495: A "Concise" subset of the NGNDB that listed "major features", and a "Historical" subset that included the features that no longer exist. There is no differentiation amongst different types of populated places. In the words of the aforementioned 1986 USACE report, "[a] subdivision having one inhabitant is as significant as a major metropolitan center such as New York City ". In comparing GNIS populated place records with data from

165-588: A 1962 replacement of the "Nigger" racial pejorative for African Americans with "Negro" and a 1974 replacement of the "Jap" racial pejorative for Japanese Americans with "Japanese". In 2015, a cross-reference of the GNIS database against the Racial Slur Database had found 1441 racial slur placenames, every state of the United States having them, with California having 159 and the state with

220-694: A 2008 book on ethnic slurs in U.S. placenames Mark Monmonier of Syracuse University discovered "Niger Hill" in Potter County, Pennsylvania , an erroneous transcription of "Nigger Hill" from a 1938 map, and persuaded the USBGN to change it to "Negro Hill". In November 2021, the United States Secretary of the Interior issued an order instructing that "Squaw" be removed from usage by the U.S. federal government. Prior efforts had included

275-504: A heat source for thousands of years. In the 20th century, they became a renewable resource of geothermal energy for heating homes and buildings. The city of Beppu, Japan contains 2,217 hot spring well heads that provide the city with hot water. Hot springs have also been used as a source of sustainable energy for greenhouse cultivation and the growing of crops and flowers. Springs have been represented in culture through art, mythology, and folklore throughout history. The Fountain of Youth

330-474: A kind of mythic quality in that some people falsely believe that springs are always healthy sources of drinking water. They may or may not be. One must take a comprehensive water quality test to know how to use a spring appropriately, whether for a mineral bath or drinking water. Springs that are managed as spas will already have such a test. Springs are often used as sources for bottled water. When purchasing bottled water labeled as spring water one can often find

385-422: A later phase). Generic designations were given after specific names, so (for examples) Mount Saint Helens was recorded as "Saint Helens, Mount", although cities named Mount Olive , not actually being mountains, would not take "Mount" to be a generic part and would retain their order "Mount Olive". The primary geographic coordinates of features which occupy an area, rather than being a single point feature, were

440-495: A lower elevation and exit in the form of a spring, using the ground like a drainage pipe. Still other springs are the result of pressure from an underground source in the earth, in the form of volcanic or magma activity. The result can be water at elevated temperature and pressure, i.e. hot springs and geysers . The action of the groundwater continually dissolves permeable bedrock such as limestone and dolomite , creating vast cave systems. Spring discharge, or resurgence ,

495-399: A permanent, unique feature record identifier, sometimes called the GNIS identifier. The database never removes an entry, "except in cases of obvious duplication." The GNIS was originally designed for four major purposes: to eliminate duplication of effort at various other levels of government that were already compiling geographic data, to provide standardized datasets of geographic data for

550-675: A rate of at least 2800 liters or 100 cubic feet (2.8 m ) of water per second. Some locations contain many first-magnitude springs, such as Florida where there are at least 27 known to be that size; the Missouri and Arkansas Ozarks , which contain 10 known of first-magnitude; and 11 more in the Thousand Springs area along the Snake River in Idaho . The scale for spring flow is as follows: Minerals become dissolved in

605-412: A second Alaska file) data from the 1:100000 and 1:250000 scale USGS maps. Map names were recorded exactly as on the maps themselves, with the exceptions for diacritics as with the NGNDB. Unlike the NGNDB, locations were the geographic coördinates of the south-east corner of the given map, except for American Samoa and Guam maps where they were of the north-east cornder. The TMNDB was later renamed

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660-471: A source of fresh water , especially in arid regions which have relatively little annual rainfall . Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic pressure . A spring produced by the emergence of geothermally heated groundwater is known as a hot spring . The yield of spring water varies widely from a volumetric flow rate of nearly zero to more than 14,000 litres per second (490 cu ft/s) for

715-425: A third phase was considered, which would have handled name changes where local usages differed from maps, it was never begun. The database is part of a system that includes topographic map names and bibliographic references. The names of books and historic maps that confirm the feature or place name are cited. Variant names, alternatives to official federal names for a feature, are also recorded. Each feature receives

770-518: Is a mythical spring which was said to restore youth to anyone who drank from it. It has been claimed that the fountain is located in St. Augustine, Florida , and was discovered by Juan Ponce de León in 1513. However, it has not demonstrated the power to restore youth, and most historians dispute the veracity of Ponce de León's discovery. Pythia, also known as the Oracle at Delphi was the high priestess of

825-407: Is determined by the spring's recharge basin. Factors that affect the recharge include the size of the area in which groundwater is captured, the amount of precipitation, the size of capture points, and the size of the spring outlet. Water may leak into the underground system from many sources including permeable earth, sinkholes, and losing streams . In some cases entire creeks seemingly disappear as

880-576: Is greater than human body temperature, usually in the range of 45–50 °C (113–122 °F), but they can be hotter. Those springs with water cooler than body temperature but warmer than air temperature are sometimes referred to as warm springs. Hot springs or geothermal springs have been used for balneotherapy , bathing, and relaxation for thousands of years. Because of the folklore surrounding hot springs and their claimed medical value, some have become tourist destinations and locations of physical rehabilitation centers. Hot springs have been used as

935-443: Is or was human activity" not covered by a more specific feature class), "populated place" (a "place or area with clustered or scattered buildings"), "spring" (a spring ), "lava" (a lava flow , kepula , or other such feature), and "well" (a well ). Mountain features would fall into "ridge", "range", or "summit" classes. A feature class "tank" was sometimes used for lakes, which was problematic in several ways. This feature class

990-411: Is said to result in the absorption of the minerals from the water. Some springs contain arsenic levels that exceed the 10 ppb World Health Organization (WHO) standard for drinking water . Where such springs feed rivers they can also raise the arsenic levels in the rivers above WHO limits. Water from springs is usually clear. However, some springs may be colored by the minerals that are dissolved in

1045-561: The Geographic Cell Names database (GCNDB hereafter) in the 1990s. The Generic database was in essence a machine-readable glossary of terms and abbreviations taken from the map sources, with their definitions, grouped into collections of related terms. The National Atlas database was an abridged version of the NGNDB that contained only those entries that were in the index to the USGS National Atlas of

1100-586: The Temple of Apollo . She delivered prophesies in a frenzied state of divine possession that were "induced by vapours rising from a chasm in the rock". It is believed that the vapors were emitted from the Kerna spring at Delphi. The Greek myth of Narcissus describes a young man who fell in love with his reflection in the still pool of a spring. Narcissus gazed into "an unmuddied spring, silvery from its glittering waters, which neither shepherds nor she-goats grazing on

1155-714: The Thematic Mapper of the Landsat program , researchers from the University of Connecticut in 2001 discovered that "a significant number" of populated places in Connecticut had no identifiable human settlement in the land use data and were at road intersections. They found that such populated places with no actual settlement often had "Corner" in their names, and hypothesized that either these were historical records or were "cartographic locators". In surveying in

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1210-703: The United States and its territories; the associated states of the Marshall Islands , Federated States of Micronesia , and Palau ; and Antarctica . It is a type of gazetteer . It was developed by the United States Geological Survey (USGS) in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names. Data were collected in two phases. Although

1265-548: The 1990s (still including tape and paper) to floppy disc , over FTP , and on CD-ROM . The CD-ROM edition only included the NGNDB, the AGNDB, the GCNDB, and a bibliographic reference database (RDB); but came with database search software that ran on PC DOS (or compatible) version 3.0 or later. The FTP site included extra topical databases: a subset of the NGNDB that only included the records with feature classes for populated places,

1320-572: The GNIS web site and can review the justifications and supporters of the proposals. The usual sources of name change requests are an individual state's board on geographic names, or a county board of governors. This does not always succeed, the State Library of Montana having submitted three large sets of name changes that have not been incorporated into the GNIS database. Conversely, a group of middle school students in Alaska succeeded, with

1375-652: The North Anna River collects the Little River . Other tributaries of the North Anna include Pamunkey Creek and Contrary Creek . 37°48′12″N 77°24′28″W  /  37.80347°N 77.40776°W  / 37.80347; -77.40776 Geographic Names Information System The Geographic Names Information System ( GNIS ) is a database of name and location information about more than two million physical and cultural features throughout

1430-466: The United States , with the coördinates published in the latter substituted for the coördinates from the former. The Board on Geographic Names database was a record of investigative work of the USGS Board on Geographic Names ' Domestic Names Committee, and decisions that it had made from 1890 onwards, as well as names that were enshrined by Acts of Congress . Elevation and location data followed

1485-905: The United States, a "Corner" is a corner of the surveyed polygon enclosing an area of land, whose location is, or was (since corners can become "lost" or "obliterated" ), marked in various ways including with trees known as "bearing trees" ("witness trees" in older terminology ) or "corner monuments". From analysing Native American names in the database in order to compile a dictionary, professor William Bright of UCLA observed in 2004 that some GNIS entries are "erroneous; or refer to long-vanished railroad sidings where no one ever lived". Such false classifications have propagated to other geographical information sources, such as incorrectly classified train stations appearing as towns or neighborhoods on Google Maps. The GNIS accepts proposals for new or changed names for U.S. geographical features through The National Map Corps . The general public can make proposals at

1540-405: The biggest springs. Springs are formed when groundwater flows onto the surface. This typically happens when the water table reaches above the surface level, or if the terrain depresses sharply. Springs may also be formed as a result of karst topography , aquifers or volcanic activity . Springs have also been observed on the ocean floor , spewing warmer, low- salinity water directly into

1595-574: The broadcasting masts for radio and television stations, civil divisions, regional and historic names, individual buildings, roads, and triangulation station names. The databases were initially available on paper (2 to 3 spiral-bound volumes per state), on microfiche , and on magnetic tape encoded (unless otherwise requested) in EBCDIC with 248-byte fixed-length records in 4960-byte blocks . The feature classes for association with each name included (for examples) "locale" (a "place at which there

1650-426: The coordinates were taken to be those of a primary civic feature such as the city hall or town hall , main public library , main highway intersection, main post office, or central business district regardless of changes over time; these coordinates are called the "primary point". Secondary coordinates were only an aid to locating which topographic map(s) the feature extended across, and were "simply anywhere on

1705-424: The entire United States and that were abridged versions of the data in the other 57: one for the 50,000 most well known populated places and features, and one for most of the populated places. The files were compiled from all of the names to be found on USGS topographic maps, plus data from various state map sources. In phase 1, elevations were recorded in feet only, with no conversion to metric, and only if there

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1760-423: The feature and on the topographic map with which it is associated". River sources were determined by the shortest drain, subject to the proximities of other features that were clearly related to the river by their names. The USGS Topographic Map Names database (TMNDB hereafter) was also 57 computer files containing the names of maps: 56 for 1:24000 scale USGS maps as with the NGNDB, the 57th being (rather than

1815-476: The form of a particular name, an associated legend , the attribution of healing qualities to the water through the numinous presence of its guardian spirit or of a Christian saint , or a ceremony or ritual centered on the well site. Christian legends often recount how the action of a saint caused a spring's water to flow - a familiar theme, especially in the hagiography of Celtic saints. The geothermally heated groundwater that flows from thermal springs

1870-439: The government and others, to index all of the names found on official U.S. government federal and state maps, and to ensure uniform geographic names for the federal government. Phase 1 lasted from 1978 to 1981, with a precursor pilot project run over the states of Kansas and Colorado in 1976, and produced 5 databases. It excluded several classes of feature because they were better documented in non-USGS maps, including airports,

1925-585: The help of their teachers, a professor of linguistics, and a man who had been conducting a years-long project to collect Native American placenames in the area, in changing the names of several places that they had spotted in class one day and challenged for being racist, including renaming "Negrohead Creek" to an Athabascan name Lochenyatth Creek and "Negrohead Mountain" to Tl'oo Khanishyah Mountain, both of which translate to "grassy tussocks" in Lower Tanana and Gwichʼin respectively. Likewise, in researching

1980-425: The location of the feature's mouth, or of the approximate center of the area of the feature. Such approximate centers were "eye-balled" estimates by the people performing the digitization, subject to the constraint that centers of areal features were not placed within other features that are inside them. alluvial fans and river deltas counted as mouths for this purpose. For cities and other large populated places,

2035-717: The most such names being Arizona. One of the two standard reference works for placenames in Arizona is Byrd Howell Granger's 1983 book Arizona's Names: X Marks the Place , which contains many additional names with racial slurs not in the GNIS database. Despite "Nigger" having been removed from federal government use by Stewart Udall , its replacement "Negro" still remained in GNIS names in 2015, as did " Pickaninny ", " Uncle Tom ", and " Jim Crow " and 33 places named "Niggerhead". There were 828 names containing "squaw", including 11 variations on "Squaw Tit" and "Squaw Teat", contrasting with

2090-728: The mountain nor any other cattle had touched, which neither bird nor beast nor branch fallen from a tree had disturbed." (Ovid) The early 20th century American photographer, James Reuel Smith created a comprehensive series of photographs documenting the historical springs of New York City before they were capped by the city after the advent of the municipal water system. Smith later photographed springs in Europe leading to his book, Springs and Wells in Greek and Roman Literature, Their Legends and Locations (1922). The 19th century Japanese artists Utagawa Hiroshige and Utagawa Toyokuni III created

2145-533: The northern boundaries of Louisa and Hanover counties. It joins the South Anna River to form the Pamunkey River on the common boundary of Caroline and Hanover counties, about 5 miles (8 km) northeast of the town of Ashland . The North Anna Dam on the common boundary of Louisa and Spotsylvania counties causes the river to form Lake Anna , which was created to provide water for the adjacent North Anna Nuclear Generating Station . Near its mouth,

2200-427: The ocean. Springs formed as a result of karst topography create karst springs , in which ground water travels through a network of cracks and fissures—openings ranging from intergranular spaces to large caves , later emerging in a spring. The forcing of the spring to the surface can be the result of a confined aquifer in which the recharge area of the spring water table rests at a higher elevation than that of

2255-399: The outlet. Spring water forced to the surface by elevated sources are artesian wells . This is possible even if the outlet is in the form of a 300-foot-deep (91 m) cave. In this case the cave is used like a hose by the higher elevated recharge area of groundwater to exit through the lower elevation opening. Non-artesian springs may simply flow from a higher elevation through the earth to

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2310-604: The point where a dam is thought to be". The National Geographic Names database (NGNDB hereafter) was originally 57 computer files, one for each state and territory of the United States (except Alaska which got two) plus one for the District of Columbia. The second Alaska file was an earlier database, the Dictionary of Alaska Place Names that had been compiled by the USGS in 1967. A further two files were later added, covering

2365-412: The same rules as for the NGNDB. So too did names with diacritic characters. Phase 2 was broader in scope than phase 1, extending the scope to a much larger set of data sources. It ran from the end of phase 1 and had managed to completely process data from 42 states by 2003, with 4 still underway and the remaining 4 (Alaska, Kentucky, Michigan, and New York) awaiting the initial systematic compilation of

2420-455: The sources to use. Many more feature classes were included, including abandoned Native American settlements, ghost towns , railway stations on railway lines that no longer existed, housing developments , shopping centers , and highway rest areas . The actual compilation was outsourced by the U.S. government, state by state, to private entities such as university researchers. The Antarctica Geographic Names database (AGNDB hereafter)

2475-477: The use of "Nipple" in names with non- Native American allusions such as "Susies Nipple". Spring (hydrology) A spring is a natural exit point at which groundwater emerges from the aquifer and flows onto the top of the Earth's crust ( pedosphere ) to become surface water . It is a component of the hydrosphere , as well as a part of the water cycle . Springs have long been important for humans as

2530-482: The volume of flow. Springs fall into three general classifications: perennial (springs that flow constantly during the year); intermittent (temporary springs that are active after rainfall, or during certain seasonal changes); and periodic (as in geysers that vent and erupt at regular or irregular intervals). Springs are often classified by the volume of the water they discharge. The largest springs are called "first-magnitude", defined as springs that discharge water at

2585-933: The water as it moves through the underground rocks . This mineral content is measured as total dissolved solids (TDS). This may give the water flavor and even carbon dioxide bubbles, depending on the nature of the geology through which it passes. This is why spring water is often bottled and sold as mineral water , although the term is often the subject of deceptive advertising . Mineral water contains no less than 250 parts per million (ppm) of tds. Springs that contain significant amounts of minerals are sometimes called ' mineral springs '. (Springs without such mineral content, meanwhile, are sometimes distinguished as 'sweet springs'.) Springs that contain large amounts of dissolved sodium salts , mostly sodium carbonate , are called 'soda springs'. Many resorts have developed around mineral springs and are known as spa towns . Mineral springs are alleged to have healing properties. Soaking in them

2640-457: The water sinks into the ground via the stream bed. Grand Gulf State Park in Missouri is an example of an entire creek vanishing into the groundwater system. The water emerges 9 miles (14 km) away, forming some of the discharge of Mammoth Spring in Arkansas . Human activity may also affect a spring's discharge—withdrawal of groundwater reduces the water pressure in an aquifer, decreasing

2695-602: The water test for that spring on the website of the company selling it. Springs have been used as sources of water for gravity-fed irrigation of crops. Indigenous people of the American Southwest built spring-fed acequias that directed water to fields through canals. The Spanish missionaries later used this method. A sacred spring, or holy well, is a small body of water emerging from underground and revered in some religious context: Christian and/or pagan and/or other. The lore and mythology of ancient Greece

2750-431: The water. For instance, water heavy with iron or tannins will have an orange color. In parts of the United States a stream carrying the outflow of a spring to a nearby primary stream may be called a spring branch , spring creek , or run. Groundwater tends to maintain a relatively long-term average temperature of its aquifer; so flow from a spring may be cooler than other sources on a summer day, but remain unfrozen in

2805-543: The winter. The cool water of a spring and its branch may harbor species such as certain trout that are otherwise ill-suited to a warmer local climate . Springs have been used for a variety of human needs - including drinking water, domestic water supply, irrigation, mills , navigation, and electricity generation . Modern uses include recreational activities such as fishing, swimming, and floating; therapy ; water for livestock; fish hatcheries; and supply for bottled mineral water or bottled spring water. Springs have taken on

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2860-757: Was added in the 1990s and comprised records for BGN-approved names in Antarctica and various off-lying islands such as the South Orkney Islands , the South Shetland Islands , the Balleny Islands , Heard Island , South Georgia , and the South Sandwich Islands . It only contained records for natural features, not for scientific outposts. The media on which one could obtain the databases were extended in

2915-449: Was an actual elevation recorded for the map feature. They were of either the lowest or highest point of the feature, as appropriate. Interpolated elevations, calculated by interpolation between contour lines , were added in phase 2. Names were the official name, except where the name contained diacritic characters that the computer file encodings of the time could not handle (which were in phase 1 marked with an asterisk for update in

2970-476: Was replete with sacred and storied springs—notably, the Corycian , Pierian and Castalian springs. In medieval Europe, pagan sacred sites frequently became Christianized as holy wells. The term "holy well" is commonly employed to refer to any water source of limited size (i.e., not a lake or river, but including pools and natural springs and seeps), which has some significance in local folklore . This can take

3025-568: Was undocumented, and it was (in the words of a 1986 report from the Engineer Topographic Laboratories of the United States Army Corps of Engineers ) "an unreasonable determination", with the likes of Cayuga Lake being labelled a "tank". The USACE report assumed that "tank" meant "reservoir", and observed that often the coordinates of "tanks" were outside of their boundaries and were "possibly at

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