Benson Mines
New York, United States
The Benson Mine is an iron-ore mine located near Star Lake, a village in the southern St. Lawrence County, New York. The ore body at Benson Mine was discovered in 1810 by engineers conducting a survey for a new military road from Albany to Ogdensburg. In the 1950s, the mine was considered the largest open-pit iron-ore mine in the world. The mine was finally closed in 1978.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).