What is the primary purpose of defining base lines in land measurement?

The primary purpose of defining base lines in land measurement is to serve as a reference for land divisions. Base lines are important because they provide a systematic framework that helps surveyors delineate boundaries and create parcels of land. By establishing these reference lines, it becomes easier to measure distances accurately and ensure consistent division of land into lots, ranges, and townships, particularly in large surveying projects.

Base lines act as a starting point for the Public Land Survey System, which is integral to organizing and recording land ownership in the United States. This system benefits not only landowners but also local governments and planners, as it aids in the systematic development and management of land resources, aligning with the general principle of effective land use.