Which line is used in the government survey method of land description to establish North and South orientation?

In the government survey method of land description, the line used to establish North and South orientation is the Principal Meridian. Principal Meridians are the primary reference lines, running North and South, that help in the systematic surveying and division of land. These meridians intersect with the Base Lines, which run East and West. Together, these lines create a grid that aids in accurately describing and locating parcels of land.

The Base Line functions in a perpendicular manner to the Principal Meridian, serving as the East-West reference line. While both lines are essential in the surveying process, it is the Principal Meridian that specifically establishes the North and South orientation. Understanding this system is crucial for navigating and managing land boundaries effectively.