Reported Crop Circles for the State of South Dakota -

Clark, Clark County (September 8, 1992)

A 600-foot diameter circle in a potato crop field (rare). No further details known.

Eyewitness report only.

Crop type: wheat

Source: Linda Howe; MUFON, Rosemary Ellen Guiley, CNACCS
 

City / County / Date:

• Veblen Township, Marshall County, South Dakota
  (August 11, 1965)
• Eagle Butte, Dewey County
  (July 1990)
• Leola, McPherson County
  (early August 1990)
• Clark, Clark County
  (September 8, 1992)
• Fort Randall, Gregory County (June 30, 1996)
• Watertown, Codington County (August 8, 1996)
• Menno, Hutchinson County (September 9, 1999)