Colo. Rev. Stat. § 42-4-1604
The driver of any vehicle which collides with or is involved in an accident with any vehicle or other property which is unattended resulting in any damage to such vehicle or other property shall immediately stop and either locate and notify the operator or owner of such vehicle or other property of such fact, the driver's name and address, and the registration number of the vehicle he or she is driving or attach securely in a conspicuous place in or on such vehicle or other property a written notice giving the driver's name and address and the registration number of the vehicle he or she is driving. The driver shall also make report of such accident when and as required in section 42-4-1606. Every stop shall be made without obstructing traffic more than is necessary. This section shall not apply to the striking of highway fixtures or traffic control devices which shall be governed by the provisions of section 42-4-1605. Any person who violates any provision of this section commits a class 2 misdemeanor traffic offense.
C.R.S. § 42-4-1604
This section is similar to former § 42-4-1404 as it existed prior to 1994, and the former § 42-4-1604 was relocated to § 42-4-1804 .