Colo. Rev. Stat. § 37-42-121
The board of directors may sell bonds so authorized and issued from time to time as may be necessary for district purposes, having first by resolution declared its intention to do so and having appointed a day and hour therefor. Notice of such sale shall be given by publishing the same for twenty days in a daily newspaper published in the city of Denver, Colorado, and in such other newspapers as the board may designate. The notice shall state the time and place at which sealed bids shall be received to purchase such bonds as shall be offered, and sale shall be made to the highest responsible bidder; except that the board may reject all offers and refuse to sell in case no responsible bid is received for ninety-five cents or more on the dollar.
C.R.S. § 37-42-121
For publication of legal notices, see part 1 of article 70 of title 24.