Colo. Rev. Stat. § 37-44-147
The court shall fix the time for the hearing of said petition and shall order the clerk of the court to give and publish a notice of the filing of said petition. The notice shall be given and published for three successive weeks in a newspaper published in each county into which the district may extend. The notice shall state the time and place fixed for the hearing of the petition and the prayer of the petitioners and that any person interested in the organization of said district, or sale of said bonds, on or before the day fixed for the hearing of said petition, may move to dismiss or answer said petition. The petition may be referred to and described in said notice as the petition of the board of directors of .............. internal improvement district (giving its name), praying that the proceedings for the issue of said bonds of said district may be examined, approved, and confirmed by the court.
C.R.S. § 37-44-147