A square that measures six miles by six miles formed by the intersection of range and township lines is called what?

The correct term for a square that measures six miles by six miles and is formed by the intersection of range and township lines is a township. In the Public Land Survey System (PLSS), townships are designated as squares that each cover an area of 6 miles by 6 miles, resulting in a total area of 36 square miles. This system is used for the orderly division and identification of land, especially in rural or undeveloped areas.

Within this context, other terms like district, parcel, and block refer to different concepts in real estate. A district typically refers to an area defined for a particular purpose, such as a zoning district. A parcel usually refers to a specific piece of land that is defined by boundaries; it can vary in size and shape and is not restricted to the standard township dimensions. A block often refers to a section of land within a larger area, typically in urban settings, often surrounded by streets. Thus, in relation to the size and specific organization of land referenced in the question, township is the correct and applicable term.