The northern edge of Alabama was the baseline used to start the Huntsville Meridian, a line extending southward through the middle of Alabama, in order to execute a survey of this territory in 1807. This is another case where the lines that were used for the survey became roads. The Initial Point was re-surveyed in 1977 by the Alabama Society of Professional Land Surveyors, and a ten-inch diameter disc marking the location was embedded in the road surface. It was paved over within ten years, and is no longer visible.
Alabama was surveyed from two Initial Points, in the south along the St. Stephens Meridian (in yellow), and the northern half from the Huntsville Meridian (in blue).