C.R.S. § 42-4-702: Vehicle turning left.

The driver of a vehicle intending to turn to the left within an intersection or into an alley, private road, or driveway shall yield the right-of-way to any vehicle approaching from the opposite direction which is within the intersection or so close thereto as to constitute an immediate hazard. Any person who violates any provision of this section commits a class A traffic infraction.