UFO seen over Limón Colorado in 1956

Summary

A round object the size of a grapefruit was observed in the sky above Limón, Colorado, in 1956. The witness described the object as white and making a sound similar to that of a truck. It appeared from the west, moved east, then turned north before fading from view. The observation lasted about 30 seconds, limiting the conclusions that could be drawn. Despite the short duration, the testimony is clear and detailed, adding interest to this case. No photographs or other visual records were taken, but the official report classifies it as a ground observation and not a balloon or aircraft.