The Tallahassee principal meridian is located in 84°16’37.59”W longitude, and it runs both north and south from the initial point on the Tallahassee base line, which lies in 30°26’04.12”N latitude. The Tallahassee Meridian and base line control all of the public land surveys in the State of Florida. The initial point for the Tallahassee Meridian was chosen after the Adams-Onís Treaty—in which Spain ceded Florida territory to the United States—was ratified by the U.S. in 1824, and the city of Tallahassee was chosen to be the seat of government for the new U.S. State of Florida. A monument marking the initial point can be found in Cascades Park in Tallahassee, Florida. Ranges were run both east and west from the Tallahassee meridian, and survey townships were run both north and south of the Tallahassee base line, though the vast majority of survey townships and ranges were run to the south and east of the Initial Point.
