43 U.S.C. § 394

The proceeds heretofore or hereafter received from the lease of any lands reserved or withdrawn under the reclamation law or from the sale of the products therefrom shall be covered into the reclamation fund; and where such lands are affected by a reservation or withdrawal under some other law, the proceeds from the lease of land and the sale of products therefrom shall likewise be covered into the reclamation fund in all cases where such lands are needed for the protection or operation of any reservoir or other works constructed under the reclamation law, and such lands shall be and remain under the jurisdiction of the Secretary of the Interior.