What describes the standards of parallel in the context of surveying?

In surveying, the standards of parallel refer to the concept of designated lines of latitude that are used to create a grid system for mapping and property descriptions. In Wisconsin, the specific standard indicates that these parallels are set at intervals of sixty miles apart. This system helps surveyors to establish boundaries and references consistently across vast areas, ensuring that property descriptions and land surveys maintain uniformity.

The other options do not accurately represent the standards of parallel as defined in surveying. North-south lines, while essential for defining meridians, do not apply to parallels; six miles apart refers to the spacing of section lines in the Public Land Survey System but does not align with the concept of parallels; true north lines, which are critical for navigation, do not define the spacing standard of parallels, as they relate more to aligning with the Earth's geographic North Pole than the established grid system used in surveying.