The largest extraction pit in Adirondack Park is at the Benson Mines site, in the northwest corner of the park. The flooded pit is two miles long, and once was the largest open-pit magnetite mine in the world. Covering 3,000 acres, the site is now one of the largest industrially zoned areas of the park. Mitchell Stone owns some of the site, and has an aggregate business there, as it does at Tahawus.