Yule marble is hereby made and declared to be the state rock of the state of Colorado.
Source: L. 2004: Entire section added, p. 76, § 1, effective August 4.
State rock
Colo. Rev. Stat. § 24-80-912.7, under STATE EMBLEMS AND SYMBOLS.
Colo. Rev. Stat. § 24-80-912.7