What is Gunter's Chain?

Gunter's Chain is a historical unit of distance measurement specifically equal to 66 feet. This measurement is foundational in land surveying and was traditionally used to measure distances in the field, particularly in the 17th and 18th centuries. The chain consists of 100 links, with each link being 7.92 inches long, which is why the chain totals 66 feet (or 22 yards) when multiplied by the number of links.

Its significance in surveying arises from its standardized length, which allowed surveyors to create accurate measurements of land plots easily. While methods for measuring area and different types of surveying equipment exist, Gunter's Chain is particularly notable for its specific measurement value rather than being a technique or type of equipment. Additionally, it does not serve as a reference line for navigation but is deeply rooted in the practice of land surveying and property boundary determinations.