Survey of boundaries; when and how to be made; presumption once recorded.
Wyo. Stat. Ann. § 15-1-413
in effect(a) If the boundaries of any city or town are uncertain or incapable of ascertainment, the governing body, by ordinance, may provide for a survey thereof. If the survey is made, the boundaries shall be marked by substantial monuments, and the person making the survey shall report to the governing body describing the boundaries by metes and bounds. The description as nearly as possible shall refer, if upon surveyed lands, to the corners or lines of the United States surveys. The person making the survey shall also file with the city or town clerk the field notes of his survey. The city or town clerk shall then file a copy of the report and a copy of the field notes certified by the mayor and clerk with the county clerk for the county in which the city or town is located.
(b) Any survey made and recorded as provided in subsection (a) of this section is presumptive of the boundaries of the city or town, and any copy thereof certified by the county clerk shall be received in evidence in any court of this state.
(c) The city or town clerk shall file a copy of an official map or legal description designating the geographical boundaries of the city or town or the changes to its geographical boundaries with the department of revenue, the county assessor and the county clerk in the county or counties within which the city or town is located in accordance with the department's rules adopted pursuant to W.S. 39-11-102(c)(xxiv) regarding tax districts, with any special district affected by the boundary change and as follows:
(i) Within ten (10) days after the effective date of formation; and
(ii) Within thirty (30) days if a city or town has changes to its geographical boundaries by annexation or de-annexation.
Source: WY Statutes (Official Site)URL: https://wyoleg.gov/statutes/compress/title15.pdfFetched: 10/4/2026