The Louisiana Meridian runs through the middle of the state, and was the basis for the survey for most of Louisiana. The Initial Point is located near the center of the state, near the town of Lecompte. There is no commemorative monument marking the point, and it is not easily accessible, as it is on swampy land that is privately owned. The point itself is indicated by a brass survey disc embedded on a concrete cylinder, installed by a federal surveyor in 1937.
The perpendicular lines in the middle of Louisiana meet at the Initial Point. The area of the state in yellow was measured from this location. The part of the state in red lies east of the Mississippi, and was surveyed from the St. Helena Meridian.