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25-816: The Selzerbeek originates in Germany below the tripoint Germany-Belgium-Netherlands at Vaalserberg and flows through Vaalserquartier . From Vaals through Lemiers to Mamelis the Selzerbeek forms the natural border between the Netherlands and Germany. In this area, it flows to other small streams: the Orsbacher Puetz, the Zieversbach at Holset, the Herman Bach Lemiers and Harleserbach at Harles. Behind Mamelis flows Selzerbeek by

50-555: Is Farmington, New Mexico , followed by Durango, Colorado . The United States acquired the four corners region from Mexico after the end of the Mexican–American War in 1848. In 1863 Congress created the Arizona Territory from the western part of New Mexico Territory . The boundary was legally defined as a line running due south from the southwest corner of Colorado Territory , which had been created in 1861. This

75-488: Is a stub . You can help Misplaced Pages by expanding it . This article related to a river in the Netherlands is a stub . You can help Misplaced Pages by expanding it . Tripoint A triple border , tripoint , trijunction , triple point , or tri-border area is a geographical point at which the boundaries of three countries or subnational entities meet. There are 175 international tripoints as of 2020. Nearly half are situated in rivers, lakes or seas. On dry land,

100-935: Is available via the Durango-La Plata County Airport in Durango, Colorado , Four Corners Regional Airport in Farmington, New Mexico , and Cortez Municipal Airport in Cortez, Colorado . Interstate 40 passes along the southern edge of the Four Corners region. The primary U.S. Highways that directly serve the Four Corners include U.S. Route 64 , U.S. Route 160 (which serves the Four Corners Monument itself), U.S. Route 163 , U.S. Route 191 , U.S. Route 491 (previously U.S. Route 666 ), and U.S. Route 550 . The main line of

125-649: Is mostly rural. The economic hub, largest city, and only metropolitan area in the region is Farmington, New Mexico . The populated settlement closest to the center of Four Corners is Teec Nos Pos , Arizona. Other cities in the region include Cortez and Durango in Colorado; Monticello and Blanding in Utah; Kayenta and Chinle in Arizona; and Shiprock , Aztec , and Bloomfield in New Mexico. Air service

150-568: The Atchison, Topeka and Santa Fe Railway , now operated by the BNSF Railway , passes along the southern edge of Four Corners. The area is home to remnants of through railroads that are now heritage railways . These include the Durango and Silverton Narrow Gauge Railroad and the Cumbres and Toltec Scenic Railroad . The Black Mesa and Lake Powell Railroad , which connects a power plant with

175-749: The Chuska Mountains . Six governments have jurisdictional boundaries at the Four Corners Monument: the states of Arizona, Colorado, New Mexico, and Utah, as well as the tribal governments of the Navajo Nation and Ute Mountain Ute Tribe . The Four Corners Monument itself is administered by the Navajo Nation Department of Parks and Recreation. Other tribal nations within the Four Corners region include

200-824: The Hopi and other Ute . The Four Corners is home to the capital of the Navajo tribal government at Window Rock , Arizona. The Ute Mountain Ute tribal headquarters are located at Towaoc , Colorado. The US federal government also has a large presence in the area, particularly the Department of the Interior with the Bureau of Indian Affairs and the Department of Agriculture with the Forest Service . The Four Corners region

225-468: The South Pole in a point of elevenfold complexity, though this is an example of points subject to dispute . International tripoints include: Some historic tripoints: While the exact line of an international border is normally fixed by a bilateral treaty, the position of the tripoints may need to be settled by a trilateral agreement. For example, China, Russia, and Mongolia have set the position of

250-534: The central states . This weather system creates snow- and rainfall over the central United States. Federally protected areas in the Four Corners area include Canyon de Chelly National Monument , Hovenweep National Monument , Mesa Verde National Park , and Canyons of the Ancients National Monument . Mountain Ranges in the Four Corners include Sleeping Ute Mountains , Abajo Mountains , and

275-508: The territorial waters ), and the same goes for countries with their only neighbour country, such as Portugal or Lesotho . Landlocked countries also have international tripoints. Likewise, the United States with two neighbouring countries has no international tripoints; however, it has a number of state tripoints as well as one point where four states meet . Indonesia has no international tripoints, just like Australia, Japan and

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300-526: The Netherlands, parallel to Provincial route 278 along the villages Nijswiller , Wahlwiller and Partij until it empties into the Geul (a direct tributary of the Meuse ) near Wittem . The Selzerbeek runs for 7.2 kilometres (4.5 mi) in Germany or on the border, and for 6.2 km (3.9 mi) solely in the Netherlands. The area Vaals-Lemiers- Vijlen belongs to the Netherlands since 1661. Since forming

325-733: The Selzerbeek the old frontier. After investigations by the MUNLV NRW in Selzerbeek's exposure to pesticides, metals and other pollutants low or below the detection limit (2008) At the Selzerbeek are several water mills: The Lemierser mill in the Mamelis Schoeërmolen, as well as in Wittem the mill of the monastery and the Wittemermolen. This article related to a river in North Rhine-Westphalia

350-517: The United States. Canada , as well, which has a maritime border with two other countries, has no international tripoints; however, it has five tripoints on land where the boundaries of provinces and territories meet, and one quadripoint where four provinces and territories meet . Japan has multiple prefectural tripoints; it also has prefectural quadripoints. In addition to the United States, Canada and Indonesia, Australia also has tripoints where

375-424: The boundaries of states meet. Border junctions (or "multiple points" or "multipoints" as they are also sometimes called) are most commonly threefold. There are also a number of quadripoints , and a handful of fivefold points, as well as unique examples of sixfold, sevenfold, and eightfold points (see quadripoint § Multipoints of greater numerical complexity ). The territorial claims of six countries converge at

400-484: The corresponding survey marker, was unintentionally placed by its initial surveyor 1,821 feet (555 m) east of the intended location. In 1925, some 57 years after Congress had first attempted to specify the spot, the problems surrounding the originally misplaced marker were brought up before the US Supreme Court. In order to amicably remedy this original surveying error, the US Supreme Court then redefined

425-892: The exact tripoints may be indicated by markers or pillars, and occasionally by larger monuments. Usually, the more neighbours a country has, the more international tripoints that country has. China with 16 international tripoints and Russia with 11 to 14 lead the list of states by number of international tripoints. Other countries, like Brazil , India , and Algeria , have several international tripoints. Argentina has four international tripoints. South Africa , Pakistan and Nigeria have three international tripoints while Bangladesh and Mexico have only one. Within Europe, landlocked Austria has nine tripoints, among them two with Switzerland and Liechtenstein . Island countries , such as Japan and Australia , have no international tripoints (some, like Bahrain and Singapore , have tripoints in

450-415: The four states meet, and is marked by the Four Corners Monument . It is the only location in the United States where four states meet. In addition to the monument, commonly visited areas within Four Corners include Monument Valley , Mesa Verde National Park , Chaco Canyon , Canyons of the Ancients National Monument and Canyon de Chelly National Monument . The most populous city in the Four Corners region

475-466: The largest of which is the Navajo Nation , followed by Hopi , Ute , and Zuni tribal reserves and nations. The Four Corners region is part of a larger region known as the Colorado Plateau and is mostly rural, rugged, and arid. The Four Corners area is named after the quadripoint at the intersection of approximately 37° north latitude with 109° 03′ west longitude, where the boundaries of

500-424: The point of the Four Corners, officially moving the Four Corners point roughly 1,800 feet (550 m) east, to where the original survey had first held it to be all along, and where it remains to this day, duly marked. This initial survey error has resulted in some longstanding misunderstandings about the correct location of the Four Corners marker, some of which remain to this day. The first Navajo tribal government

525-628: The two relevant tripoints (the junction points of the China–Russia border , the Mongolia–Russia border , and the China–Mongolia border ) by the trilateral agreement signed in Ulaanbaatar on January 27, 1994. The agreement specified that a marker was to be erected at the eastern tripoint, called Tarvagan Dakh (Tarbagan Dakha), but that no marker would be erected at the western tripoint (which

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550-404: Was an unusual act of Congress, which almost always defined the boundaries of new territories as lines of latitude or longitude, or following rivers, but seldom as extensions of other boundaries. By defining one boundary as starting at the corner of another, Congress ensured the eventual creation of four states meeting at a point, regardless of the inevitable errors of boundary surveying. The area

575-573: Was defined as the peak of the mountain Tavan-Bogdo-Ula (Kuitunshan, Tavan Bogd Uul). Four Corners Four Corners is a region of the Southwestern United States consisting of the southwestern corner of Colorado , southeastern corner of Utah , northeastern corner of Arizona , and northwestern corner of New Mexico . Most of the Four Corners region belongs to semi-autonomous Native American nations,

600-458: Was established in 1923 to regulate an increasing number of oil exploration activities on Navajo land. The Four Corners Monument is located at 36°59′56.3″N 109°02′42.6″W  /  36.998972°N 109.045167°W  / 36.998972; -109.045167 . The Four Corners is part of the high Colorado Plateau . This makes it a center for weather systems , which stabilize on the plateau then proceed eastward through Colorado and into

625-477: Was first surveyed by the U.S. Government in 1868 as part of an effort to make Colorado Territory into a state, the first of the Four Corners states formed. While the US Congress in 1863 intended the corners of Colorado to be placed at the intersections of lines of specific latitude and longitude, due to a "standard" survey error of the time, the originally surveyed location of the "Four Corners" point, along with

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