This photo is a fire rainbow - the
 rarest of all naturally occurring
 atmospheric phenomena. 

The picture was captured on
 the Idaho/Washington northern
 border.  The event lasted about
 1 hour. 

Clouds have to be cirrus, at
 least 20,000 feet in the air, with
just the right amount of  ice
crystals and the sun has to
 hit the clouds at precisely 58
 degrees.