Wyo. Stat. § 15-1-1005: Certificate of dissolution; issuance and filing thereof; date of dissolution.

(a) The secretary of state shall thereafter issue to the mayor, president of the council, or clerk or chairman of the former governing body a certificate of dissolution, together with a certified copy thereof which shall be filed in the office of the county clerk of the county in which the city or town was situated.

(b) The municipal corporate status shall be dissolved upon the date the secretary of state issues a certificate of dissolution, if a certified copy of the certificate is filed in the office of the county clerk of the county in which the municipality was situated within ten (10) days after that date. Otherwise the date of dissolution is the date upon which the certified copy of the certificate of dissolution is filed in the proper county office.