Convert from sitio to section

Unit Definition (sitio)
The sitio is a name used traditionally in Mexico and the southwestern U.S. for the square legua, a unit of area equal to 25 million square varas or about 1800 hectares. The word means "place".

Unit Definition (section)
The section is a traditional unit of area in the U.S., equal to 1 square mile. This unit is used by the U.S. Public Land Survey System, which applies to most of the U.S. except for the original 13 states, Alaska, and Hawaii.