Colo. Rev. Stat. § 37-43-103
At any general or special election held in any irrigation district, the board of directors may submit to the electors of the district the question of voting for directors of the district on an acreage basis; except that no landowner has the right to vote more than eighty acres in the election of directors. If at such election a majority of the votes cast are in favor of the proposition, at all elections of directors held thereafter, each landowner of the district shall be permitted to vote for each office to be filled as many votes as he has acres of land within the district which are subject to district taxes or assessments. A landowner may vote in person or by proxy, and any person acting as proxy for another must file written authority therefor with the election judges, which authority must be retained with the other election proceedings. The candidate receiving the most votes shall be declared elected.
C.R.S. § 37-43-103