Tallahassee meridian
The Tallahassee meridian, in longitude 84° 16′ 37.59″ west from the prime meridian at Greenwich, runs north and south from the initial point on the base line at Tallahassee, in latitude 30° 26′ 04.12″ north, and as a principal meridian governs the surveys in Florida and Alabama as part of the Public Land Survey System. The "Tallahassee meridian" survey monument (see survey marker) is located at the intersection of these lines of longitude and latitude (the longitude line being the "Tallahassee meridian" and the latitude line being the "Tallahassee Parallel" or "Tallahassee Base Line").