On Friday June 14, 2013, my husband and I were at Mountain View Reservior on the Idaho, Nevada border. I happened to look up at the sun, and saw that it had a circle around it. The circle looked much like a rainbow, but it was a perfect circle, the area inside the circle was somewhat dark as if it were a shadow. In all of my years on this earth, I have never seen anything like. I was able to get a fairly good photo of it, which is attached. I would be very interested to know what caused this occurance.