Reported Crop Circles for the State of Colorado -

King Ranch, Alamosa, Alamosa County (September 9, 1967)

15 individual, circular areas are found covering an area of about 300’ by 150’ in diameter. One chico bush was flattened to within 10 inches of the ground. Inside one 20' diameter circle in brush, a mutilated horse was discovered. A US Forest Service Ranger was called in to check for radiation. He reportedly found “intense radiation” around the circular marks, but inside the circle where the horse was found the radiation counts dropped the closer he got to the horse.

Eyewitness report only.

Crop type: Brush

Source: “The Mysterious Link Between UFOs and Animal Mutilations”, Tommy Roy Blann, UFO Report, April 1976; The Secret History of Crop Circles, Terry Wilson
 

City / County / Date:

• King’s Ranch, Alamosa, Alamosa County (September 9, 1967)
• Pueblo, Pueblo County (September 9, 1972)
• La Veta, Huerfanol County (October, 1994)
• Hartman, Prowers County (Heartland?) (June 4, 1996)
• Delta, Delta County
  (August 12, 1996)
• Antonito, San Luis Valley / Crestone, Conejos County (September 23, 1996)
• Boulder, Boulder County
  (October 4, 2000)
• [Northern] (August 18, 2005)