Idaho Code § 58-803

At any time after the entry of such lands, and before three (3) months from the date of the receipt of a patent therefor, the corporate authorities or judge entering the same, must give public notice of such entry by posting the notice thereof in at least three (3) public places in said town, and by publishing such notice in a newspaper printed and published in the county in which such town is situated, or in case there is no such newspaper, then in some newspaper printed and published at the seat of government; such notice must be published once in each week for at least three (3) successive weeks, and must contain the name of the town and an accurate description of the lands so entered as the same are described in the certificate of entry, duplicate receipt for the purchase money thereof issued at the time of entry, or in the patent in case patent has issued.