Date of sighting: April 19, 1978
Location of sighting: Colfax, WisconsinOn April 19, 1978, police officer Mark Coltrane was on patrol in the vicinity of Colfax, a small town with a thousands of inhabitants in Wisconsin, USA. At midday, he decided to stop the car to eat something, in a small isolated area. He noted that his radio was emitting crackles. He snapped these two photos on his Polaroid camera.