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Principal Meridian
A principal meridian is a meridian used for survey control in a large region. Canada The Dominion Land Survey of Western Canada took its origin at the First (or Principal) Meridian, located at 97°27′28.41″ west of Greenwich, just west of Winnipeg, Manitoba. This line is exactly ten miles west of the Red River at the Canada–United States border. Six other meridians were designated at four-degree intervals westward, with the seventh located in British Columbia; the second and fourth meridians form the general eastern border and the western border of Saskatchewan. United States In the United States Public Land Survey System, a principal meridian is the principal north-south line used for survey control in a large region, and which divides townships between east and west. The meridian meets its corresponding baseline at the point of origin, or initial point, for the land survey. For example, the Mount Diablo Meridian, used for surveys in California and Nevada, runs north ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meridian (geography)
In geography and geodesy, a meridian is the locus connecting points of equal longitude, which is the angle (in degrees or other units) east or west of a given prime meridian (currently, the IERS Reference Meridian). In other words, it is a line of longitude. The position of a point along the meridian is given by that longitude and its latitude, measured in angular degrees north or south of the Equator. On a Mercator projection or on a Gall-Peters projection, each meridian is perpendicular to all circles of latitude. A meridian is half of a great circle on Earth's surface. The length of a meridian on a modern ellipsoid model of Earth ( WGS 84) has been estimated as . Pre-Greenwich The first prime meridian was set by Eratosthenes in 200 BCE. This prime meridian was used to provide measurement of the earth, but had many problems because of the lack of latitude measurement. Many years later around the 19th century there were still concerns of the prime meridian. Mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Diablo State Park
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England * Mounts, Indiana, a community in Gibson County, Indiana, United States People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surveying
Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial two-dimensional or three-dimensional positions of points and the distances and angles between them. A land surveying professional is called a land surveyor. These points are usually on the surface of the Earth, and they are often used to establish maps and boundaries for ownership, locations, such as the designed positions of structural components for construction or the surface location of subsurface features, or other purposes required by government or civil law, such as property sales. Surveyors work with elements of geodesy, geometry, trigonometry, regression analysis, physics, engineering, metrology, programming languages, and the law. They use equipment, such as total stations, robotic total stations, theodolites, GNSS receivers, retroreflectors, 3D scanners, LiDAR sensors, radios, inclinometer, handheld tablets, optical and digital levels, subsurface locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Principal And Guide Meridians And Base Lines Of The United States
This is a list of principal and guide meridians and base lines of the United States, with the year established and a brief summary of what areas' land surveys are based on each. List of meridians Primarily from the United States Government Printing Office ''Style Manual''. GPO stock number 021-000-00178-3 (paper). State names usually signify only parts of each listed state, unless otherwise indicated. Based on the BLM manual's 1973 publication date, and the reference to Clarke's Spheroid of 1866 in section 2-82, coordinates appear to be in the NAD27 datum. Principal Meridians Guide Meridians Ohio Lands Some parts of the Ohio Lands (now Ohio) were laid out in survey townships, but based on other points not listed above: * Base Line of the United States Military Survey (1797) * Great Miami River baseline (1798) * Ohio River (1785) — also part of Indiana * Muskingum River baseline (1800) * Scioto River baseline (1799) * Twelve Mile Square Reserve (1805) See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baseline (surveying)
In surveying, a baseline is a line between two points on the earth's surface and the direction and distance between them. In a triangulation network, at least one baseline between two stations needs to be measured to calculate the size of the triangles by trigonometry. In the United States Public Land Survey System, a baseline is the principal east-west line (i.e., a parallel) upon which all rectangular surveys in a defined area are based. The baseline meets its corresponding principal meridian at the point of origin, or ''initial point'', for the land survey. For example, the baseline for Nebraska and Kansas is shared as the border for both states, at the 40th parallel north. More specifically a baseline may be the line that divides a survey township between north and south. "Baseline Road" in the United States Many communities in the United States have roads that run along survey baselines, many of which are named to reflect that fact. Some examples: * In Little Rock, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardo
A cardo (plural ''cardines'') was a north–south street in Ancient Roman cities and military camps as an integral component of city planning. The cardo maximus, or most often the ''cardo'', was the main or central north–south-oriented street. Etymology The ''cardo maximus'' was the "hinge" or axis of the city, derived from Greek καρδίᾱ, kardia ("heart") and as such was generally lined with shops and vendors, and served as a hub of economic life. Most Roman cities also had a Decumanus Maximus, an east–west street that served as a secondary main street. Due to varying geography, in some cities the Decumanus is the main street and the Cardo is secondary, but in general the Cardo maximus served as the primary street. The Forum was normally located at, or close to, the intersection of the Decumanus and the Cardo. Examples Apamea, Syria The Cardo Maximus of Apamea, Syria ran through the centre of the city directly from North to South, linked the principal gates of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Verne, California
La Verne is a city in Los Angeles County, California, United States. The population was 31,063 at the 2010 census, down from 31,638 at the 2000 census. History The European history of the area dates back to the 1830s when Ygnacio Palomares and Ricardo Véjar received the Rancho San Jose land grant from Governor Juan Bautista Alvarado in 1837. The land included the present day cities Pomona, Claremont, San Dimas, Glendora, and La Verne. The adobe which Palomares built in 1837 is still preserved in Pomona as La Casa Primera de Rancho San Jose (The First House). Palomares soon moved a mile or so northeast and constructed the Ygnacio Palomares Adobe. He ensured that a nephew, Jose Dolores Palomares, secured a tract of land a mile west. In the mid-1880s, entrepreneur Isaac W. Lord purchased a tract of Jose Palomares' land and convinced the Santa Fe Railroad company to run its line across towards Los Angeles. Lord had the land surveyed for building lots and in 1887 h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Highland, California
Highland (and neighboring "East Highlands") is a city in San Bernardino County, California, United States. The population of the city was 53,104 as of the 2010 census, up from 44,605 at the 2000 census. The term ''Highland'' also refers to a geographical area of the city of San Bernardino (generally east of Del Rosa Avenue to the eastern city limits), and parts of unincorporated San Bernardino County. Highland is generally divided into two regions, East Highlands and Highland (Generally considered west of State Route 210, with the majority of inhabitants living east of the freeway.) Geography Highland is located at (34.118459, -117.202370). According to the United States Census Bureau, the city has a total area of 18.9 square miles (48.9 km). 18.8 square miles (48.6 km) of it is land and 0.1 square miles (0.3 km) of it (0.71%) is water. Demographics 2010 At the 2010 census Highland had a population of 53,104. The population density was . The racial makeup o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wichita, Kansas
Wichita ( ) is the largest city in the U.S. state of Kansas and the county seat of Sedgwick County. As of the 2020 census, the population of the city was 397,532. The Wichita metro area had a population of 647,610 in 2020. It is located in south-central Kansas on the Arkansas River. Wichita began as a trading post on the Chisholm Trail in the 1860s and was incorporated as a city in 1870. It became a destination for cattle drives traveling north from Texas to Kansas railroads, earning it the nickname "Cowtown".Miner, Prof. Craig (Wichita State Univ. Dept. of History), ''Wichita: The Magic City'', Wichita Historical Museum Association, Wichita, KS, 1988Howell, Angela and Peg Vines, ''The Insider's Guide to Wichita'', Wichita Eagle & Beacon Publishing, Wichita, KS, 1995 Wyatt Earp served as a police officer in Wichita for around one year before going to Dodge City. In the 1920s and 1930s, businessmen and aeronautical engineers established aircraft manufacturing companies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacaville, California
Vacaville is a city located in Solano County in Northern California. Sitting approximately from Sacramento and from San Francisco, it is within the Sacramento Valley. As of the 2020 census, Vacaville had a population of 102,386, making it the third largest city in Solano County. History Prior to European contact, the indigenous Patwin tribe lived in the area with the Ululato tribelet establishing a chiefdom around the Ululato village in what is now downtown Vacaville along the Ulatis Creek. The early settler pioneers of the land were Juan Manuel Cabeza Vaca and Juan Felipe Peña who were awarded a Mexican land grant in 1842. The same year in 1842, Vaca and Peña's families settled in the area of Lagoon Valley. Peña's Adobe home is the oldest standing building, built in 1842. Discussions for the sale of a portion of land to William McDaniel began in August 1850. A written agreement was signed on December 13, 1851, forming a township, nine square miles of land were deed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Jose, California
San Jose, officially San José (; ; ), is a major city in the U.S. state of California that is the cultural, financial, and political center of Silicon Valley and largest city in Northern California by both population and area. With a 2020 population of 1,013,240, it is the most populous city in both the Bay Area and the San Jose-San Francisco-Oakland Combined Statistical Area, which contain 7.7 million and 9.7 million people respectively, the third-most populous city in California (after Los Angeles and San Diego and ahead of San Francisco), and the tenth-most populous in the United States. Located in the center of the Santa Clara Valley on the southern shore of San Francisco Bay, San Jose covers an area of . San Jose is the county seat of Santa Clara County and the main component of the San Jose–Sunnyvale–Santa Clara Metropolitan Statistical Area, with an estimated population of around two million residents in 2018. San Jose is notable for its innovation, cultural div ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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