Unusual Ground Marking

Unusual Ground Markings or UGMs are named ground features that appear to be hard to explain. The best-known UGMS are crop circles.

Other forms of UGMs are ice circles , footprints of unknown origin and burnt grass. At some Unusual Ground Markings there is said to be a higher level of radioactivity.

Unusual ground markings are sometimes interpreted as landing traces of UFOs or as footprints from cryptozoological animals or aliens; while for sceptics most of them are fakes.

See also

Notable Unusual Ground Markings

• The devil's traces in Devon, UK in the mid of the 19th century
• The cross in the grass at Eisenberg an der Raab
• The faces of Belmez
• The Nazca Lines