What is a cadastral location (i.e., Township-Range-Section)?
The Public Lands Survey divides Arizona into squares called townships and sections. In this cadastral coordinate system, tracts of land are related to the point where the Gila and Salt Rivers meet. A location is established by the number of six-mile units (Townships) north or south of that point, and the number of six-mile units (Ranges) east or west. Each six-mile by six-mile township is further divided into 36 one-square-mile (640 acre) Sections.