Mining and Minerals | Bureau of Land Management
The minerals on Federal lands are divided into three categories, each subject to different laws and regulations. Locatable, which are subject to the Mining Law of 1872, as amended, include gold, silver, copper and other hard rock minerals. Leasable minerals, such as coal and a host of other commodities, are subject to various Mineral Leasing Acts.Underground mining (hard rock) - Wikipedia,Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as salt, coal,Rocks, Minerals and Mining Theme Page - CLN,Note: The sites listed above will serve as a source of curricular content in Rocks, Minerals, and Mining. For other resources in Science (e.g., curricular content in Earth Science, General Science, Life Science, or Physical Science), or for lesson plans and theme pages, click the "previous screen" button below.