Wyo. Const. art. 16, § 10

The provisions of section 6 of article 16 of this constitution prohibiting the state from engaging in any work of internal improvements, unless authorized by a two-thirds vote of the people, shall not apply to or affect the construction or improvement of any works designed, constructed or operated for the purposes of conservation or utilization of water, but the legislature shall have the power to provide for the construction or improvement in whole or in part, of any works designed, constructed or operated for the purposes of conservation or utilization of water, either directly or by extending aid to legal subdivisions of the State of Wyoming, duly organized irrigation, drainage, soil conservation, and public irrigation and power districts, and any public corporation legally organized for the purposes of the conservation, distribution or utilization of water or soil; and notwithstanding said inhibition as to works of internal improvement, whenever grants of land or other property shall be made to the state, especially dedicated by the grant to particular works of internal improvement, the state may carry on such particular works of internal improvement and shall devote thereto the avails of such grants, and may likewise pledge or appropriate the revenues derived from such works in aid of their completion.