Mount St. Helens

I received this picture today in my email and thought that I would share it because it struck me as being quite beautiful. The following is an explanation of why the smoke rings formed like that:

Mount. St. Helens continues to spew ash, while it is forming a lava dome in the crater and still having minor tremors. In this sunrise shot, she appears to be blowing smoke rings. What forms the "smoke rings" is the air flowing over the mountain getting pushed up higher as it goes up and over the top. The moisture content and initial temperature are just right so that the moisture condenses from a vapor to small particles at the higher altitude. When the moving air moves past the peak and comes down again, the particles evaporate back to an invisible vapor.