C.R.S. § 37-33-102
37-33-102. Lists of lands affected
37-33-102. Lists of lands affected. Said petition shall set forth the necessity and probable benefits of such drainage ditch or drain, together with a list of the lands affected by the proposed improvement and the names and addresses of the owners of such lands, and there shall be attached to said petition a plat showing the approximate direction, size, and length of said drainage ditch or drain.