10 Best and Biggest Bitcoin Mining Pools 2020 (Comparison)
Open pit Mine (Photo by wikipedia) The biggest iron mine. The world's biggest open pit iron mine can be found near Hibbing, Minnesota. At its maximum, the area covered by the Hull Rust open pit mine is five miles (8km) long, 2 miles (3,2km) wide and 535 feet (180m) deep. It looks like a man-made Grand Canyon of over 2,000 acres (8,1km²).The worlds deepest, biggest and deadliest open pit mines. In this article we will take you to some gigantic man-made holes: open pit mines. We'll show you the biggest, deepest and deadliest mines in the world. Most of them are located in the United States and can be visited.