过去几年，美国国会就《1872年美国采矿法》修正案进行过多次讨论。讨论的焦点是联帮土地上的硬岩矿床开采问题。然而，修正案的立法工作进展不大。在民主党控制众议院时，关于采矿法的比较激进的修正方案提交由共和党控制的参议院进行表决时未被通过。1996年，美国总统选举具? In the past few years, the U.S. Congress has held many discussions on the amendment to the 1872 U.S. Mining Law. The focus of the discussion was on the hard rock deposit mining on the land. However, the legislative work on the amendment has made little progress. When Democrats controlled the House of Representatives, the more radical amendment to the Mining Act was not passed when it was submitted to the Republican-controlled Senate for voting. In 1996, the United States presidential election with?