Wyo. Stat. § 11-34-130
Whoever knowingly and willfully commits a trespass upon lands owned by the board or upon lands mortgaged to the board, either by cutting down or destroying or carrying away any timber or wood standing or growing thereon or by grazing, mowing, cutting or removing any hay, grass or growing or matured crops thereon or who, without right, injures or removes any building, fence, improvements or other property belonging or appertaining to the lands, or unlawfully occupies, plows or cultivates any of the land, or aids or abets any trespass or injury, is guilty of a misdemeanor and shall be fined not less than twenty-five dollars ($25.00) or more than five hundred dollars ($500.00), imprisoned not less than thirty (30) days or more than six (6) months, or both.
W.S. 11-34-130