%0 Generic %T Mining laws of 1872 and 1989. hearing before the Subcommittee on Mineral Resources Development and Production of the Committee on Energy and Natural Resources, United States Senate, One Hundred First Congress, second session on S. 1126, to provide for the disposition of hardrock minerals on federal lands, and for other purposes. %U https://ezaccess.libraries.psu.edu/login?url=https://www.heinonline.org/HOL/Page?handle=hein.cbhear/mngl0001&id=1&size=2&collection=congrec&index=cbhear