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
Knotts Island, North Carolina
Knotts Island is a marshy island and a small unincorporated community. The island is shared by Currituck County, North Carolina and Virginia Beach, bounded by the Currituck Sound, North Landing River, Back Bay, Knotts Island Bay. Knotts Island is home to Mackay Island National Wildlife Refuge. Knotts Island is only accessible over land from Virginia Beach using Princess Anne Road; the North Carolina Department of Transportation operates a free ferry between Knotts Island and Currituck on the mainland. This island is a fishing community, it has numerous duck hunting blinds located in the bay as well as on land, is home to the Swan Island Hunting Club, a guided duck hunting club located across the bay on Swan Island. It is a favorite winter travel destination of artist/painter Bob Timberlake, among others. Over the years, many residents of the former Outer Banks community of Wash Woods, Virginia moved across the sound to settle on Knotts Island. Wash Woods became a ghost town, but descendants continue to live on Knotts Island to this day.
There are several businesses located on the island. Knotts Island Market is the only general store on the island. There is a restaurant and bar, Bay Villa referred to as "Pearl's", in reference to the former owner. Bay Villa is the center for most of the island's watercraft launching due to the boat ramp located adjacent to the main building, it is the one and only local bar and restaurant. There is a winery on the Island. Martin Farm and Winery offers waterfront views with a wine tasting room and u-pick peaches and muscadine grapes. Farm fresh vegetables are available throughout the summer; the island has a custom metal fabrication shop, OBX Metalworks, LLC, that produces artwork, shipped worldwide and handles industrial fabrication. Knotts Island hosts a Peach Festival every year in June. Knotts Island Site Knotts Island Folklore Knotts Island and Currituck County links
United States Census Bureau
The United States Census Bureau is a principal agency of the U. S. Federal Statistical System, responsible for producing data about the American people and economy; the Census Bureau is part of the U. S. Department of Commerce and its director is appointed by the President of the United States; the Census Bureau's primary mission is conducting the U. S. Census every ten years, which allocates the seats of the U. S. House of Representatives to the states based on their population; the Bureau's various censuses and surveys help allocate over $400 billion in federal funds every year and it helps states, local communities, businesses make informed decisions. The information provided by the census informs decisions on where to build and maintain schools, transportation infrastructure, police and fire departments. In addition to the decennial census, the Census Bureau continually conducts dozens of other censuses and surveys, including the American Community Survey, the U. S. Economic Census, the Current Population Survey.
Furthermore and foreign trade indicators released by the federal government contain data produced by the Census Bureau. Article One of the United States Constitution directs the population be enumerated at least once every ten years and the resulting counts used to set the number of members from each state in the House of Representatives and, by extension, in the Electoral College; the Census Bureau now conducts a full population count every 10 years in years ending with a zero and uses the term "decennial" to describe the operation. Between censuses, the Census Bureau makes population projections. In addition, Census data directly affects how more than $400 billion per year in federal and state funding is allocated to communities for neighborhood improvements, public health, education and more; the Census Bureau is mandated with fulfilling these obligations: the collecting of statistics about the nation, its people, economy. The Census Bureau's legal authority is codified in Title 13 of the United States Code.
The Census Bureau conducts surveys on behalf of various federal government and local government agencies on topics such as employment, health, consumer expenditures, housing. Within the bureau, these are known as "demographic surveys" and are conducted perpetually between and during decennial population counts; the Census Bureau conducts economic surveys of manufacturing, retail and other establishments and of domestic governments. Between 1790 and 1840, the census was taken by marshals of the judicial districts; the Census Act of 1840 established a central office. Several acts followed that revised and authorized new censuses at the 10-year intervals. In 1902, the temporary Census Office was moved under the Department of Interior, in 1903 it was renamed the Census Bureau under the new Department of Commerce and Labor; the department was intended to consolidate overlapping statistical agencies, but Census Bureau officials were hindered by their subordinate role in the department. An act in 1920 changed the date and authorized manufacturing censuses every two years and agriculture censuses every 10 years.
In 1929, a bill was passed mandating the House of Representatives be reapportioned based on the results of the 1930 Census. In 1954, various acts were codified into Title 13 of the US Code. By law, the Census Bureau must count everyone and submit state population totals to the U. S. President by December 31 of any year ending in a zero. States within the Union receive the results in the spring of the following year; the United States Census Bureau defines four statistical regions, with nine divisions. The Census Bureau regions are "widely used...for data collection and analysis". The Census Bureau definition is pervasive. Regional divisions used by the United States Census Bureau: Region 1: Northeast Division 1: New England Division 2: Mid-Atlantic Region 2: Midwest Division 3: East North Central Division 4: West North Central Region 3: South Division 5: South Atlantic Division 6: East South Central Division 7: West South Central Region 4: West Division 8: Mountain Division 9: Pacific Many federal, state and tribal governments use census data to: Decide the location of new housing and public facilities, Examine the demographic characteristics of communities and the US, Plan transportation systems and roadways, Determine quotas and creation of police and fire precincts, Create localized areas for elections, utilities, etc.
Gathers population information every 10 years The United States Census Bureau is committed to confidentiality, guarantees non-disclosure of any addresses or personal information related to individuals or establishments. Title 13 of the U. S. Code establishes penalties for the disclosure of this information. All Census employees must sign an affidavit of non-disclosure prior to employment; the Bureau cannot share responses, addresses or personal information with anyone including United States or foreign government
A ZIP Code is a postal code used by the United States Postal Service in a system it introduced in 1963. The term ZIP is an acronym for Zone Improvement Plan; the basic format consists of five digits. An extended ZIP+4 code was introduced in 1983 which includes the five digits of the ZIP Code, followed by a hyphen and four additional digits that reference a more specific location; the term ZIP Code was registered as a servicemark by the U. S. Postal Service, but its registration has since expired; the early history and context of postal codes began with postal district/zone numbers. The United States Post Office Department implemented postal zones for numerous large cities in 1943. For example: The "16" was the number of the postal zone in the specific city. By the early 1960s, a more organized system was needed, non-mandatory five-digit ZIP Codes were introduced nationwide on July 1, 1963; the USPOD issued its Publication 59: Abbreviations for Use with ZIP Code on October 1, 1963, with the list of two-letter state abbreviations which are written with both letters capitalized.
An earlier list in June had proposed capitalized abbreviations ranging from two to five letters. According to Publication 59, the two-letter standard was "based on a maximum 23-position line, because this has been found to be the most universally acceptable line capacity basis for major addressing systems", which would be exceeded by a long city name combined with a multi-letter state abbreviation, such as "Sacramento, Calif." along with the ZIP Code. The abbreviations have remained unchanged, with the exception of Nebraska, changed from NB to NE in 1969 at the request of the Canadian postal administration, to avoid confusion with the Canadian province of New Brunswick. Robert Moon is considered the father of the ZIP Code; the post office only credits Moon with the first three digits of the ZIP Code, which describe the sectional center facility or "sec center." An SCF is a central mail processing facility with those three digits. The fourth and fifth digits, which give a more precise locale within the SCF, were proposed by Henry Bentley Hahn Sr.
The SCF sorts mail to all post offices with those first three digits in their ZIP Codes. The mail is sorted according to the final two digits of the ZIP Code and sent to the corresponding post offices in the early morning. Sectional centers do not deliver mail and are not open to the public, most of their employees work the night shift. Mail picked up at post offices is sent to their own SCF in the afternoon, where the mail is sorted overnight. In the case of large cities, the last two digits coincide with the older postal zone number thus: In 1967, these became mandatory for second- and third-class bulk mailers, the system was soon adopted generally; the United States Post Office used a cartoon character, which it called Mr. ZIP, to promote the use of the ZIP Code, he was depicted with a legend such as "USE ZIP CODE" in the selvage of panes of postage stamps or on the covers of booklet panes of stamps. In 1971 Elmira Star-Gazette reporter Dick Baumbach found out the White House was not using a ZIP Code on its envelopes.
Herb Klein, special assistant to President Nixon, responded by saying the next printing of envelopes would include the ZIP Code. In 1983, the U. S. Postal Service introduced an expanded ZIP Code system that it called ZIP+4 called "plus-four codes", "add-on codes", or "add-ons". A ZIP+4 Code uses the basic five-digit code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail, a post office box, or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery. However, initial attempts to promote universal use of the new format met with public resistance and today the plus-four code is not required. In general, mail is read by a multiline optical character reader that instantly determines the correct ZIP+4 Code from the address—along with the more specific delivery point—and sprays an Intelligent Mail barcode on the face of the mail piece that corresponds to 11 digits—nine for the ZIP+4 Code and two for the delivery point.
For Post Office Boxes, the general rule is. The add-on code is one of the following: the last four digits of the box number, zero plus the last three digits of the box number, or, if the box number consists of fewer than four digits, enough zeros are attached to the front of the box number to produce a four-digit number. However, there is no uniform rule, so the ZIP+4 Code must be looked up individually for each box; the ZIP Code is translated into an Intelligent Mail barcode, printed on the mailpiece to make it easier for automated machines to sort. A barcode can be printed by the sender, it is better to let the post office put one on. In general, the post office uses OCR technology, though in some cases a human might have to read and enter the address. Customers who send bulk mail can get a discount on postage if they have printed the barcode themselves and have presorted the mai
North Carolina is a state in the southeastern region of the United States. It borders South Carolina and Georgia to the south, Tennessee to the west, Virginia to the north, the Atlantic Ocean to the east. North Carolina is the 28th-most extensive and the 9th-most populous of the U. S. states. The state is divided into 100 counties; the capital is Raleigh, which along with Durham and Chapel Hill is home to the largest research park in the United States. The most populous municipality is Charlotte, the second-largest banking center in the United States after New York City; the state has a wide range of elevations, from sea level on the coast to 6,684 feet at Mount Mitchell, the highest point in North America east of the Mississippi River. The climate of the coastal plains is influenced by the Atlantic Ocean. Most of the state falls in the humid subtropical climate zone. More than 300 miles from the coast, the western, mountainous part of the state has a subtropical highland climate. Woodland-culture Native Americans were in the area around 1000 BCE.
During this time, important buildings were constructed as flat-topped buildings. By 1550, many groups of American Indians lived in present-day North Carolina, including Chowanoke, Pamlico, Coree, Cape Fear Indians, Waxhaw and Catawba. Juan Pardo explored the area in 1566–1567, establishing Fort San Juan in 1567 at the site of the Native American community of Joara, a Mississippian culture regional chiefdom in the western interior, near the present-day city of Morganton; the fort lasted only 18 months. A expedition by Philip Amadas and Arthur Barlowe followed in 1584, at the direction of Sir Walter Raleigh. In June 1718, the pirate Blackbeard ran his flagship, the Queen Anne's Revenge, aground at Beaufort Inlet, North Carolina, in present-day Carteret County. After the grounding her crew and supplies were transferred to smaller ships. In November, after appealing to the governor of North Carolina, who promised safe-haven and a pardon, Blackbeard was killed in an ambush by troops from Virginia.
In 1996 Intersal, Inc. a private firm, discovered the remains of a vessel to be the Queen Anne's Revenge, added to the US National Register of Historic Places. North Carolina became one of the English Thirteen Colonies and with the territory of South Carolina was known as the Province of North-Carolina; the northern and southern parts of the original province separated in 1729. Settled by small farmers, sometimes having a few slaves, who were oriented toward subsistence agriculture, the colony lacked cities or towns. Pirates menaced the coastal settlements. Growth was strong in the middle of the 18th century, as the economy attracted Scots-Irish, Quaker and German immigrants. A majority of the colonists supported the American Revolution, a smaller number of Loyalists than in some other colonies such as Georgia, South Carolina, New York. During colonial times, Edenton served as the state capital beginning in 1722, New Bern was selected as the capital in 1766. Construction of Tryon Palace, which served as the residence and offices of the provincial governor William Tryon, began in 1767 and was completed in 1771.
In 1788 Raleigh was chosen as the site of the new capital, as its central location protected it from coastal attacks. Established in 1792 as both county seat and state capital, the city was named after Sir Walter Raleigh, sponsor of Roanoke, the "lost colony" on Roanoke Island; the population of the colony more than quadrupled from 52,000 in 1740 to 270,000 in 1780 from high immigration from Virginia and Pennsylvania plus immigrants from abroad. North Carolina made the smallest per-capita contribution to the war of any state, as only 7,800 men joined the Continental Army under General George Washington. There was some military action in 1780–81. Many Carolinian frontiersmen had moved west over the mountains, into the Washington District, but in 1789, following the Revolution, the state was persuaded to relinquish its claim to the western lands, it ceded them to the national government so that the Northwest Territory could be organized and managed nationally. After 1800, cotton and tobacco became important export crops.
The eastern half of the state the Tidewater region, developed a slave society based on a plantation system and slave labor. Many free people of color migrated to the frontier along with their European-American neighbors, where the social system was looser. By 1810, nearly 3 percent of the free population consisted of free people of color, who numbered more than 10,000; the western areas were dominated by white families Scots-Irish, who operated small subsistence farms. In the early national period, the state became a center of Jeffersonian and Jacksonian democracy, with a strong Whig presence in the West. After Nat Turner's slave uprising in 1831, North Carolina and other southern states reduced the rights of free blacks. In 1835 the legislature withdrew their right to vote. On May 20, 1861, North Carolina was the last of the Confederate states to declare secession from the Union, 13 days after the Tennessee legislature voted for secession; some 125,000 North Carolinians served in the military.
In law, an unincorporated area is a region of land, not governed by a local municipal corporation. Municipalities dissolve or disincorporate, which may happen if they become fiscally insolvent, services become the responsibility of a higher administration. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. In most other countries of the world, there are either no unincorporated areas at all, or these are rare. Unlike many other countries, Australia has only one level of local government beneath state and territorial governments. A local government area contains several towns and entire cities. Thus, aside from sparsely populated areas and a few other special cases all of Australia is part of an LGA. Unincorporated areas are in remote locations, cover vast areas or have small populations. Postal addresses in unincorporated areas, as in other parts of Australia use the suburb or locality names gazetted by the relevant state or territorial government.
Thus, there is any ambiguity regarding addresses in unincorporated areas. The Australian Capital Territory is in some sense an unincorporated area; the territorial government is directly responsible for matters carried out by local government. The far west and north of New South Wales constitutes the Unincorporated Far West Region, sparsely populated and warrants an elected council. A civil servant in the state capital manages such matters; the second unincorporated area of this state is Lord Howe Island. In the Northern Territory, 1.45% of the total area and 4.0% of the population are in unincorporated areas, including Unincorporated Top End Region, areas covered by the Darwin Rates Act—Nhulunbuy, Alyangula on Groote Eylandt in the northern region, Yulara in the southern region. In South Australia, 60% of the area is unincorporated and communities located within can receive municipal services provided by a state agency, the Outback Communities Authority. Victoria has 10 small unincorporated areas, which are either small islands directly administered by the state or ski resorts administered by state-appointed management boards.
Western Australia is exceptional in two respects. Firstly, the only remote area, unincorporated is the Abrolhos Islands, uninhabited and controlled by the WA Department of Fisheries. Secondly, the other unincorporated areas are A-class reserves either in, or close to, the Perth metropolitan area, namely Rottnest Island and Kings Park. In Canada, depending on the province, an unincorporated settlement is one that does not have a municipal council that governs over the settlement, it is but not always, part of a larger municipal government. This can range from small hamlets to large urbanized areas that are similar in size to towns and cities. For example, the urban service areas of Fort McMurray and Sherwood Park, of the Regional Municipality of Wood Buffalo and Strathcona County would be the fifth and sixth largest cities in Alberta if they were incorporated. In British Columbia, unincorporated settlements lie outside municipal boundaries and are administered directly by regional/county-level governments similar to the American system.
Unincorporated settlements with a population of between 100 and 1,000 residents may have the status of designated place in Canadian census data. In some provinces, large tracts of undeveloped wilderness or rural country are unorganized areas that fall directly under the provincial jurisdiction; some unincorporated settlements in such unorganized areas may have some types of municipal services provided to them by a quasi-governmental agency such as a local services board in Ontario. In New Brunswick where a significant population live in a Local Service District and services may come directly from the province; the entire area of the Czech Republic is divided into municipalities, with the only exception being 4 military areas. These are parts of the regions and do not form self-governing municipalities, but are rather governed by military offices, which are subordinate to the Ministry of Defense. † Brdy Military Area was abandoned by the Army in 2015 and converted into Landscape park, with its area being incorporated either into existing municipalities or municipalities newly established from the existing settlements.
The other four Military Areas were reduced in size in 2015 too. The decisions on whether the settlements join existing municipalities or form new ones are decided in plebiscites. Since Germany has no administrative level comparable to the townships of other countries, the vast majority of the country, close to 99%, is organized in municipalities consisting of multiple settlements which are not considered to be unincorporated; because these settlements lack a council of their own, there is an Ortsvorsteher / Ortsvorsteherin appointed by the municipal council, except in the smallest villages. In 2000, the number of unincorporated areas in Germany, called gemeindefreie Gebiete or singular gemeindefreies Gebiet, was 295 with a total area of 4,890.33 km² and around 1.4% of its territory. However
United States Geological Survey
The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, the natural hazards that threaten it; the organization has four major science disciplines, concerning biology, geography and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility; the USGS is a bureau of the United States Department of the Interior. The USGS employs 8,670 people and is headquartered in Reston, Virginia; the USGS has major offices near Lakewood, Colorado, at the Denver Federal Center, Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world." The agency's previous slogan, adopted on the occasion of its hundredth anniversary, was "Earth Science in the Public Service." Since 2012, the USGS science focus is directed at six topical "Mission Areas", namely Climate and Land Use Change, Core Science Systems, Ecosystems and Minerals and Environmental Health, Natural Hazards, Water.
In December 2012, the USGS split the Energy and Minerals and Environmental Health Mission Area resulting in seven topical Mission Areas, with the two new areas being: Energy and Minerals and Environmental Health. Administratively, it is divided into six Regional Units. Other specific programs include: Earthquake Hazards Program monitors earthquake activity worldwide; the National Earthquake Information Center in Golden, Colorado on the campus of the Colorado School of Mines detects the location and magnitude of global earthquakes. The USGS runs or supports several regional monitoring networks in the United States under the umbrella of the Advanced National Seismic System; the USGS informs authorities, emergency responders, the media, the public, both domestic and worldwide, about significant earthquakes. It maintains long-term archives of earthquake data for scientific and engineering research, it conducts and supports research on long-term seismic hazards. USGS has released the UCERF California earthquake forecast.
As of 2005, the agency is working to create a National Volcano Early Warning System by improving the instrumentation monitoring the 169 volcanoes in U. S. territory and by establishing methods for measuring the relative threats posed at each site. The USGS National Geomagnetism Program monitors the magnetic field at magnetic observatories and distributes magnetometer data in real time; the USGS collaborates with Canadian and Mexican government scientists, along with the Commission for Environmental Cooperation, to produce the North American Environmental Atlas, used to depict and track environmental issues for a continental perspective. The USGS operates the streamgaging network for the United States, with over 7400 streamgages. Real-time streamflow data are available online. National Climate Change and Wildlife Science Center implements partner-driven science to improve understanding of past and present land use change, develops relevant climate and land use forecasts, identifies lands and communities that are most vulnerable to adverse impacts of change from the local to global scale.
Since 1962, the Astrogeology Research Program has been involved in global and planetary exploration and mapping. In collaboration with Stanford University, the USGS operates the USGS-Stanford Ion Microprobe Laboratory, a world-class analytical facility for U--Pb geochronology and trace element analyses of minerals and other earth materials. USGS operates a number of water related programs, notably the National Streamflow Information Program and National Water-Quality Assessment Program. USGS Water data is publicly available from their National Water Information System database; the USGS operates the National Wildlife Health Center, whose mission is "to serve the nation and its natural resources by providing sound science and technical support, to disseminate information to promote science-based decisions affecting wildlife and ecosystem health. The NWHC provides information, technical assistance, research and leadership on national and international wildlife health issues." It is the agency responsible for surveillance of H5N1 avian influenza outbreaks in the United States.
The USGS runs 17 biological research centers in the United States, including the Patuxent Wildlife Research Center. The USGS is investigating collaboration with the social networking site Twitter to allow for more rapid construction of ShakeMaps; the USGS produces several national series of topographic maps which vary in scale and extent, with some wide gaps in coverage, notably the complete absence of 1:50,000 scale topographic maps or their equivalent. The largest and best-known topographic series is the 7.5-minute, 1:24,000 scale, quadrangle, a non-metric scale unique to the United States. Each of these maps covers an area bounded by two lines of latitude and two lines of longitude spaced 7.5 minutes apart. Nearly 57,000 individual maps in this series cover the 48 contiguous states, Hawaii, U. S. territories, areas of Alaska near Anchorage and Prudhoe Bay. The area covered by each map varies with the latitude of its represented location due to convergence of the meridians. At lower latitudes, near 30° north, a 7.5-minute quadrangle contains an area of about 64 square miles.
At 49° north latitude, 49 square miles are contained within a quadrangle of that size. As a unique non-metric map scale, the 1:24,000 scale requires a separate and specialized romer scale for pl