Ice halo images by Andrew Collins at the Avebury prehistoric stone circle, Wiltshire, England November 16, 2010.
A 22° halo circles the low sun. To the left is a faint sundog from plate crystals and at top horizontal column crystals form an upper tangent arc.
©Andrew Collins, shown with permission.
Avebury is a huge Neolithic site with a henge, stone circles, avenues and barrows. The whole area was occupied 4000 to 3500 BC by a prosperous and stable agrarian society who built Avebury and several other monuments including nearby Stonehenge.
Non halo images ©Google & Getmapping plc