Supreme Court of Colorado September 1993 casesProperty Tax v. Prod. GeophysicalPeople v. YoungNorthern Colo. v. Three PeaksCherry Creek School v. VoelkerPurgatoire River Water v. WittePeople v. BerkleyYampa Valley Elec. v. TeleckyAnderson v. BrinkhoffCity of Thornton v. Clear CreekSPECTRA PUB. v. PROP. TAX ADM'RPeople v. Stauffer