评论
打印
4. Bingham Canyon Mine-Utah 美国犹他州宾汉姆峡谷铜矿坑
The Bingham Canyon Mine is a copper mine in the Oquirrh mountains, Utah. The mine is 0.75 mile (1.2 km) deep, 2.5 miles (4 km) wide. It is the world's largest manmade excavation.
宾汉姆峡谷铜矿位于犹他州奥克尔(Oquirrh)山脉，这处矿坑深1200米，宽4000米。这是当前世界上最大的人为挖掘矿坑。
