Wyo. Const. art. 7, § 4: Restriction in use of revenues.

All money, stocks, bonds, lands and other property belonging to a county school fund, except such moneys and property as may be provided by law for current use in aid of public schools, shall belong to and be invested by the several counties as a county public school fund, in such manner as the legislature shall by law provide, the income of which shall be appropriated exclusively to the use and support of free public schools in the several counties of the state.