This document describes the largest surface mine in the world located in Mirny, Eastern Siberia. The diamond mine is 525 meters deep and 1.2 km across, requiring trucks as large as 13.36 meters long, 7.78 meters wide, and 6.65 meters tall to operate within it. The open pit mine is so large that its airspace is closed to aircraft due to unpredictable wind vortexes forming inside the crater.