The Cimarron meridian, in longitude 103° west from Greenwich, extends from latitude 36° 30′ to 37° north, and, with the base line in latitude 36° 30′ north, governs the surveys in Oklahoma west of 100° west longitude from Greenwich.
Web site: Oklahoma . U.S. Bureau of Land Management . 2012-09-25 . https://web.archive.org/web/20130222075628/http://www.blm.gov/cadastral/meridians/oklahoma.htm . 2013-02-22 . dead .
Web site: Cimarron Meridian . The Center for Land Use Interpretation . 2012-09-25.