C.R.S. § 30-26-202: County shall assume payment of bonds.

To render the amount, kind, and character of such liabilities definite and certain and fix their status under the funding and refunding laws of this state, the county imposed with the payment thereof, by the proper action of its board of county commissioners entered of record in the proceedings of the board, shall undertake and assume the payment thereof, designate and describe the same, and state their character and amount and the form in which they exist.