Why does the West boundary of Section 6 typically not run Due North?

The West boundary of Section 6 not running due North is primarily due to the need to close on the Township corner. In the Public Land Survey System (PLSS) used in Oklahoma and other states, sections are laid out in a grid pattern that aligns with township and range lines. Each township is composed of 36 sections, and when drawing these boundaries, the goal is to maintain a consistent square layout while also ensuring that the boundaries of various sections and townships close correctly.

As the Earth’s surface is curved, the lines of longitude converge towards the poles. When surveying, especially in areas further from the equator, adjustments are necessary to account for this convergence. Consequently, the West boundary may be slightly angled rather than running straight north to ensure that it aligns properly with the other sections in the township and closes at the established corner.

This need to close on the Township corner is critical to maintain the integrity of the land survey and to ensure that all measurements are accurate and reflect the true dimensions of the land.