In an interlocutory appeal, applicants sought to change their use of an absolute water right. Applicants conducted a historical consumptive use (HCU) analysis to determine the amount of water previously used in accordance with its decreed right. Applicants performed the analysis on acreage not contemplated by the original appropriation nor any subsequent decree. The water court rejected the HCU. The issue this case presented for the Colorado Supreme Court's review centered on whether applicant could conduct an HCU on acreage not associated with the relevant water right. After review of the parties' arguments in this case, the Supreme Court concluded that a HCU on acreage beyond its associated water right is impermissible. The Court affirmed the water court's judgment and remanded this case for further proceedings.