Beams Away!
Sunbeams, or Crepuscular Rays, as they are formally known, are created by cloud shadows. Technically, the name applies to those beams rising up as the sun sets below the horizon. However, it has become the known as the name for all beams created by a cloud's shadow.
This panorama was created from seven photos.
Canon EOS 5D Mark III, f/11 @ 300 mm, 1/160, ISO 160, No Flash
Larry Patterson