Township/Range Designations

Many parts of the US incorporate the PLS system to divide latitude and longitude into townships, ranges, and sections. A section is a square mile of land, and a block of 36 sections is assigned a township/range number. Townships run north and south of a baseline, and ranges run east and west of a principal meridian. So I can describe one 36-section block of land as being Township 1 North, Range 1 East of the baseline and principal meridian. Within that township/range, the sections are numbered 1 to 36, and can be further divided into quadrants - for example, the northeast quarter of Section 18, Township 2 South, Range 3 West, Seward Meridian.