About: Gila and Salt River meridian

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The Gila and Salt River Meridian intersects the initial point on the south side of the Gila River, opposite the mouth of Salt River, at latitude 33° 22′ 37.82733″ north, longitude 112° 18′ 21.99931″ west from Greenwich based on NAD 83, and governs the surveys in the territory of Arizona. The current declination for the initial point is 12° east. It is located on Monument Hill, an easily visible hill just south of the confluence of the Gila and Salt Rivers, in Avondale, Arizona, about 14 miles (23 kilometers) southwest of downtown Phoenix. The original marker was set in 1851 by John R. Bartlett. In 1934, the U.S. Coast and Geodetic Survey set triangulation station "INITIAL" approximately 15 feet from the initial point. Ty White, Associate Cadastral Engineer for the U.S. Bureau of Land Manag

Attributes	Values
rdf:type	geo:SpatialThing
rdfs:label	Gila and Salt River meridian (en)
rdfs:comment	The Gila and Salt River Meridian intersects the initial point on the south side of the Gila River, opposite the mouth of Salt River, at latitude 33° 22′ 37.82733″ north, longitude 112° 18′ 21.99931″ west from Greenwich based on NAD 83, and governs the surveys in the territory of Arizona. The current declination for the initial point is 12° east. It is located on Monument Hill, an easily visible hill just south of the confluence of the Gila and Salt Rivers, in Avondale, Arizona, about 14 miles (23 kilometers) southwest of downtown Phoenix. The original marker was set in 1851 by John R. Bartlett. In 1934, the U.S. Coast and Geodetic Survey set triangulation station "INITIAL" approximately 15 feet from the initial point. Ty White, Associate Cadastral Engineer for the U.S. Bureau of Land Manag (en)
geo:lat	33.377171 (xsd:float)
geo:long	-112.306175 (xsd:float)
foaf:depiction
dcterms:subject	Historic surveying landmarks in the United States Geography of Arizona Meridians and base lines of the United States Named meridians
Wikipage page ID	16130133 (xsd:integer)
Wikipage revision ID	987425495 (xsd:integer)
Link from a Wikipage to another Wikipage	List of principal and guide meridians and base lines of the United States Salt River (Arizona) Geoid GPS Gila River Historic surveying landmarks in the United States Avondale, Arizona Geography of Arizona Baseline Road (Arizona) Arizona Meridians and base lines of the United States Named meridians Phoenix, Arizona Phoenix Raceway Datum (geodesy) National Register of Historic Places
Link from a Wikipage to an external page	https://archive.org/details/planesurveyingf00raymgoog http://www.azpls.org/displaycommon.cfm%3Fan=1&subarticlenbr=12 http://southwest.library.arizona.edu/hav4/body.1_div.16.html http://www.clui.org/section/gila-and-salt-river-meridian http://www.pmproject.org/gila_and_salt_river.htm http://www.waymarking.com/waymarks/WM5Q37_Initial_Point_of_the_Gila_and_Salt_River_Base_Line_and_Meridian_Avondale_AZ https://web.archive.org/web/20111210172217/http:/www.blm.gov/cadastral/meridians/arizona.htm http://www.blm.gov/cadastral/meridians/arizona.htm
sameAs	Gila and Salt River meridian Gila and Salt River meridian Gila and Salt River meridian
dbp:wikiPageUsesTemplate	dbt:Cite_book dbt:Cite_web dbt:Clarify dbt:Coord dbt:No_footnotes dbt:Short_description dbt:Principal_meridians_of_the_United_States dbt:GNIS
thumbnail	wiki-commons:Special:FilePath/Avondale-Gila_and_Salt_River_Meridan-2.jpg?width=300
georss:point	33.37716944444445 -112.30617222222222
has abstract	The Gila and Salt River Meridian intersects the initial point on the south side of the Gila River, opposite the mouth of Salt River, at latitude 33° 22′ 37.82733″ north, longitude 112° 18′ 21.99931″ west from Greenwich based on NAD 83, and governs the surveys in the territory of Arizona. The current declination for the initial point is 12° east. It is located on Monument Hill, an easily visible hill just south of the confluence of the Gila and Salt Rivers, in Avondale, Arizona, about 14 miles (23 kilometers) southwest of downtown Phoenix. The original marker was set in 1851 by John R. Bartlett. In 1934, the U.S. Coast and Geodetic Survey set triangulation station "INITIAL" approximately 15 feet from the initial point. Ty White, Associate Cadastral Engineer for the U.S. Bureau of Land Management (BLM), re-monumented the initial point on December 1, 1944. On April 24,1962, the monument was re-established by Leonard W. Murphy, based on the Ty White's field notes, because the previous monument had been vandalized. On April 26, 1984, Paul L. Reeves and John P. Bennet re-monumented the original corner. On February 19, 2006, the initial point was again re-monumented due to deterioration of the 1985 plaque. This re-monumentation was performed by staff from the BLM, members of the Arizona Professional Surveyors Society, and students at Phoenix College. The initial point was added to the National Register of Historic Places (listing #02001137) as of October 15, 2002. The plaque for that listing was installed as part of the 2006 re-monumenting. For the 1984/2006 marker, handheld GPS units give a reading of 33° 22.631′ N latitude and 112° 18.366′ W longitude due to the specific geoid used. The angle between the 1984/2006 marker and the 1931 marker is at an azimuth bearing of 292°, aka 68° west of due north. The location is immediately east of Phoenix Raceway (formerly Phoenix International Raceway) and the western side of Monument Hill is terraced for low-priced race viewing. (en)
prov:wasDerivedFrom	wikipedia-en:Gila_and_Salt_River_meridian?oldid=987425495&ns=0
page length (characters) of wiki page	5302 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Gila_and_Salt_River_meridian
geo:geometry	POINT(-112.30617523193 33.377170562744)
is Link from a Wikipage to another Wikipage of	List of historic properties in Avondale, Arizona Initial point List of principal and guide meridians and base lines of the United States Grand Canyon Gila and Salt River Meridian Navajo meridian and baseline Phoenix metropolitan area arterial roads
is Wikipage redirect of	Gila and Salt River Meridian
is foaf:primaryTopic of	wikipedia-en:Gila_and_Salt_River_meridian

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