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ContributorsHayden, Carl T. (Author) / Smith, George Otih (Author)
Created1918-04-25
Description

Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.

Created1965-01-06
Description

S75: a bill to authorize the construction, operation and maintenance of the Lower Colorado River Basin Project, and for other purposes, January 6, 1965.