Wyo. Stat. § 34-12-112
Whenever the original owner or proprietor of any subdivision of any land, as contemplated in W.S. 34-12-102, has sold or conveyed any part thereof, or invested the public with any rights therein, and has failed and neglected to execute and file for record a plat, as provided in section one of this act, the county clerk shall notify some, or all, of such owners and proprietors by mail or otherwise, and demand the execution of said plat as provided; and if such owners or proprietors, whether so notified or not, fail and neglect to execute and file for record said plat for thirty (30) days after the issuance of such notice, the county clerk shall cause to be made the plat of such subdivision, and any surveying necessary therefor. Said plat shall be signed and acknowledged by the county clerk, who shall certify that he executed it by reason of the failure of the owners or proprietors named to do so, and filed for record; and when so filed for record, shall have the same effect for all purposes as if executed, acknowledged and recorded by the owners or proprietors themselves. A correct statement of the costs and expenses of such plat, surveying and recording, verified by oath, shall be by the county clerk laid before the first session of the county commissioners, who shall allow the same and order the same to be paid out of the county treasury, and who shall, at the same time, assess the same amount pro rata, upon all the several subdivisions of said tract, parcel or lot so subdivided; and said assessment shall be collected with, and in like manner as the general taxes and shall go to the general county fund; or said county commissioners may direct suit to be brought in the name of the county before any court having jurisdiction, to recover of the said original owners or proprietors, or either of them, the said cost and expense of procuring and recording said plat.
W.S. 34-12-112