Yakutia’s Mir Mine: World's Biggest Diamond Mine

Mir Mine located in Yakutia (Sakha Republic), Eastern Siberia, Russia is one of the largest man-made holes in the world. It is also called Mirny Mine. It was an open pit diamond mine, now it is inactive. The mine is The mine is 525 meters (1,722 ft) deep (4th in the world) and has a diameter of 1,200 m (3,900 ft), and is the second largest excavated hole in the world. It was active from 1957 to 2001, and closed for good in 2011, Mir produced roughly 2 million carats of diamonds annually. The diamond-bearing deposit was discovered on June 13, 1955 by Soviet geologists Yuri Khabardin. The Mir mine was the first and the largest diamond mine in the Soviet Union.