Colo. Rev. Stat. § 37-25-102
A notice of such election shall be given by posting notices in three public places in each election precinct in said district for at least twenty days and by publication of such notice in some newspaper published in the county where the office of the drainage district is required to be kept once a week for at least three successive weeks. The notice shall specify the time of holding the election and the amount of bonds proposed to be issued, and said election shall be held and the results thereof determined and declared in all respects as nearly as possible in conformity with the provisions of sections 37-21-105 to 37-21-108, 37-21-112, and 37-21-115 to 37-21-124 governing the election of directors. No informalities in conducting such election shall invalidate the same if the election has been otherwise fairly conducted. At such election the ballots shall contain the words "Bonds - Yes" or "Bonds - No".
C.R.S. § 37-25-102
For publication of legal notices, see part 1 of article 70 of title 24 .