Wyo. Stat. § 30-2-104: Restrictions upon visitation.

(a) No person shall enter or remain in any mine, excavation, pit, quarry, mill, or processing plant unless authorized by the owner or operator or by law.

(b) No person other than the owner and operator, his employees and agents, and inspectors shall enter, be permitted to enter or remain in any mine, excavation, pit, quarry, mill, or processing plant unless accompanied by the owner, operator or other authorized person.