Colo. Const. art. XVIII, § 4
The term felony, wherever it may occur in this constitution, or the laws of the state, shall be construed to mean any criminal offense punishable by death or imprisonment in the penitentiary, and none other.
Source: Entire article added, effective August 1, 1876, see L. 1877, p. 73.
Cross references: For classification of felonies, see § 18-1. 3-401.