Navajo meridian and baseline explained

The Navajo meridian, established in 1869,[1] is one of the two principal meridians for Arizona, the other being the Gila and Salt River meridian. Its initial point was stated as latitude 35° 45' north, longitude 108° 32' 45" west from Greenwich,[2] but has been revised as [3] The Navajo meridian and baseline were used to set townships and ranges in a special survey for the original Navajo Reservation,[4] [5] and was set at the eastern boundary of that reservation.[4] The Arizona lands surveyed using the Navajo meridian and baseline were ranges six west to ten west and townships one north to fourteen north,[5] and included Canyon de Chelly National Monument.[6]

While the above-mentioned Arizona lands still reference the Navajo meridian and baseline,[5] in New Mexico the surveys of lands originally surveyed under it were canceled in 1936,[4] and have since been resurveyed using the New Mexico meridian and baseline.[5] In Arizona, only the portions of the Navajo Reservation that are east of the Hopi Reservation were surveyed using the Navajo meridian and baseline.[5] [7]

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Notes and References

  1. United States Geological Survey and United States Forest Service (May 2003) National Mapping Program Technical Instructions Part 5: Public Land Survey System Standards for USGS and USDA Forest Service Single Edition Quadrangle Maps, p. 5A-3, draft
  2. Book: Raymond , William Galt . Plane Surveying for Use in the Classroom and Field . via Internet Archive . 458 . 1914 . American Book Company . New York .
  3. http://www.pmproject.org/pmlist.htm "List of Meridians"
  4. Hubbard, Bill, Jr. (2009) "Navajo Meridian, 1869" American Boundaries: The nation, the states, the rectangular survey University of Chicago Press, Chicago, p. 338,
  5. Zajac, Terrence M. and Myler, Charles E. (1996) Arizona Real Estate: Practice and Law Real Estate Education Co., Chicago, Illinois,
  6. http://www.nps.gov/archive/cach/adhi/adhia6.htm "Act Authorizing Establishment of Canyon de Chelly NM"
  7. [Bureau of Land Management]