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.
- "Cadastral Survey [Louisiana Meridian]". U.S. Bureau of Land Management. Retrieved 2012-10-05.
- "Principal Meridians and Base Lines". U.S. Bureau of Land Management. 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.