The area of a square measuring one mile (5,280 feet) on a side. Also called a section. One sq mile = 640 acres = 2.59 sq kilometers = 27 million sq feet = 4 quarter sections
Interactive Learning Paradigms Incorporated ILPI (Knowledge at the Speed of Light), The MSDS Hyper Glossary (Home Page of the Material Safety Data Sheet Hyper Glossary), ILPI, NJ, USA 2011. http://www.ilpi.com/msds/ref/index.html, (MSDS - Amer) {448}