Wyo. Stat. § 15-6-415: Assessments; record of payment or redemption.

If the amount of any assessment, with interest, penalty, costs and charges accrued thereon is paid to the treasurer before the sale of any property, he shall mark it paid with the date of payment on the assessment roll. If any property sold for any assessments is redeemed, the treasurer shall enter it with the date of redemption on the roll. The records shall be made on the margin of the roll opposite the description of the property.