CITIES AND TOWNS ‑- ANNEXATION ‑- PROCEEDINGS INITIATED BY PETITION OF RESIDENTS IN AREA SOUGHT TO BE ANNEXED ‑- PUBLIC HEARING ‑- NOTICE REQUIRED When an annexation proposal has been initiated by petition of the residents in the area sought to be annexed to a city or town and is approved by the review board, the board of county commissioners of the county in which the city or town is situated must conduct a public hearing, the notice of which must be published at least in a weekly newspaper in each of the two issues immediately preceding the hearing.