Abandoned mine legislation : hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Eighth Congress, second session, on S. 2049, to amend the Surface Mining Control and Reclamation Act of 1977 to reauthorize collection of reclamation fees, revise the abandoned mine reclamation program, promote remining, authorize the Office of Surface Mining to collect the black lung excise tax, and make other sundry changes, and S. 2086, to amend the Surface Mining Control and Reclamation Act of 1977 to improve the reclamation of abandoned mines, March 11, 2004.