township grid
_based on the base line and meridian
township (US)
_36 square miles (93 km2)_norm _originally surveyed and platted by the US General Land Office using contracted private survey crews _marked on the U.S. Geological Survey maps
Sector
-normal division of the section into aliquot parts and the fractional division into government lots _~1 mile or 640 acres _ can be further subdivided into quarter-sections (160 acres),quarterquarter sections (40 acres),or any other mathematical subdivision
township and sector size 6 miles
A way of subdividing and describing land in most of the United States. Texas, Hawaii, and most of the original 13 states are not described by the PLSS. The system starts with a principal meridian, which is a north-south line. There are 37 principal meridians in the United States. Each principal meridian has a base line that runs east and west through it. Land is described as being east or west of the principal meridian, and north or south of the range line associated with that meridian. Land is typically divided into six square mile townships. Townships are described with reference to their principal meridian and base line. township and sectors size
30
1
1 miles
31
12
6