Surveyors establish a selected latitude baseline and a selected longitude principal meridian for each state.
The baseline and principal meridian form the axis for griding off the state into units called townships.

In Florida, the principal meridian runs north and south through Tallahassee.

Townships are 36 square miles: sub-divided into 36 1-by-1-mile square parcels called sections. Sections are numbered from 1 to 36 for identification.

Each township has a township and range designation to define its 36-square-mile area. Township is numbered north and south from the base line, and range is numbered west or east from the principal meridian.

     
In this current project, you will need to zoom in to see the township and range designations on the map.

The image below shows where you will find the Base line and the Principal Meridian on the map interface. The red box encloses
Township 1 North, Range 1West (01N01W)
Township 1 North, Range 1 East (01N01E)
Township 1 South, Range 1 West (01S01W)
Township 1 South, Range 1 East (01S01E)
      

Remember, the Principal Meridian runs north and south through Tallahassee.