Context

Context of Proposed revision of mining and mineral leasing laws for public lands : hearings before the Subcommittee on Mines and Mining of the Committee on Interior and Insular Affairs, House of Representatives, Ninety-fourth Congress, first session on H.R. 8435, to reform the mining and mineral leasing laws, and for other purposes : hearings held in Washington, D.C., July 17 and 18, 1975
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