Sun Ring and Contrail in Bitterroot
As sunset approached Monday evening, there was an obvious ring around the Sun. The effect is caused by ice crystals in the cirrus clouds, which makes sense since a cold front was passing through the area Monday.
But, that wasn't what had initially captured my attention. It was the contrail with a visible shadow on the nearby thin cloud layer. The jet trail led right into the center of the circle.
Always keep looking up and have a camera handy.