Colorado State Highway 266State Highway 266 is a state highway in the U.S. state of Colorado. SH 266's western terminus is at U.S. Route 50 and SH 71 in Rocky Ford, and the eastern terminus is at SH 109 near Cheraw.Route descriptionSH 266 runs, starting at a junction with US 50 in Rocky Ford. The highway goes east, crosses the Arkansas River and ends at a junction with SH 109 near Cheraw.