43 U.S.C. § 54

The Secretary of the Interior shall take all the necessary measures for the completion of the surveys in the several surveying districts, at the earliest periods compatible with the purposes contemplated by law; and whenever the surveys and records of any such district are completed, the Secretary of the Interior or such officer as he may designate shall deliver over to the secretary of state of the respective States, including such surveys, or to such other officer as may be authorized to receive them, all the field notes, maps, records, and other papers appertaining to land titles within the same.