The Louisiana meridian, in longitude 92° 24′ 15″ west of Greenwich, extends from the Gulf of Mexico to the north boundary of Louisiana, and with the baseline through the initial point conforming to the parallel of 31° north latitude, governs all the surveys in the state west of the Mississippi River.

• Raymond, William Galt (1914). Plane Surveying for Use in the Classroom and Field (via Google Books). New York: American Book Company.

• List of principal and guide meridians and base lines of the United States

• "Cadastral Survey [Louisiana Meridian]". U.S. Bureau of Land Management. Archived from the original on 2013-01-05. Retrieved 2012-10-05.
• "Principal Meridians and Base Lines". U.S. Bureau of Land Management. Archived from the original on 2012-10-18. Retrieved 2012-10-05.
• "Louisiana Principal Meridian". Principal Meridian Project. Retrieved 2012-10-05.
• "Louisiana Meridian". The Center for Land Use Interpretation. Retrieved 2012-10-05.

31°00′31.91″N 92°24′55.72″W