Series of three shots from the same spot, showing a Rocky Mountain Airways airplane landing at the Avon STOLport. Abandoned & Little-Known Airfields: Western Colorado: Avon STOLport [short take-off and landing airport], 2004: "The date of construction of this field is unknown. It was apparently built at some point between 1963-82, as it was not depicted on the October 1963 Sangre De Christo Mountains World Aeronautical Chart (courtesy of Donald...