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Washington Meridian
Adopted 1803. Governing surveys - Mississippi. Initial Point - Latitude 30-59-56, Longitude 91-09-36

St. Stephens Meridian
Adopted 1805. Governing surveys - Alabama and Mississippi. Initial Point - Latitude 30-59-51, Longitude 88-01-20

Louisiana Meridian
Adopted 1807. Governing surveys - Louisiana. Initial Point - Latitude 31-00-31, Longitude 92-24-55

Huntsville Meridian
Adopted 1807. Governing surveys - Alabama and Mississippi. Initial Point - Latitude 34-59-27, Longitude 86-34-16

St. Helena Meridian
Adopted 1819. Governing surveys - Louisiana. Initial Point Latitude 30-59-56, Longitude 91-09-36

Choctaw Meridian
Adopted 1821. Governing surveys - Mississippi. Initial Point Latitude 31-52-32, Longitude 90-14-41

Tallahassee Meridian
Adopted 1824. Governing surveys- Florida and Alabama. Initial Point - Latitude 30-26-03, Longitude 84-16-38

Chickasaw Meridian
Adopted 1833. Governing surveys - Mississippi. Initial Point Latitude 35-01-58, Longitude 89-14-47