Reported Crop Circles for the State of Indiana -

Rome, Perry County (Late June, 1964)

A 5' diameter circular 'burned' area was discovered in an alfalfa field, with three additional "intensely burned" circles of an unreported diameter found to be "arranged in a triangular shape as though made by table legs".

Update:

Thanks to Charlie Kiesel for finding this news clipping!

Crop type: alfalfa

Source: "Mysterious Markings in Field Baffle Perry County Farm Family." NSID Db Listing Category 6, pg2; The News, Cannelton, IN; and Charlie Kiesel
 

City / County / Date:

• Rome, Perry County
  (Late June, 1964)
• Middlebury, Elkhart County
  (June 22, 1966)
• [Unknown] (1972)
• Greenfield, Hancock County (November 8, 1978)
• Copley Woods (?), (July 31, 1983)
• Middletown, Henry County
  (May 27, 1987)
• Anderson / Middletown, Allen County (May 31, 1989)
• Warsaw, Kosciusko County
  (June 27, 1990)
• Noblesville, Hamilton County (June 7, 1994)
• Troy, Spencer County
  (June, 1994)
• Greensburg / Napoleon, Decatur County (September 11, 1994)
• Indian Village, Noble County
  (July 1, 1996)
• Etna Troy Township / Columbia City, Whitley County
  (July 14, 1996)
• Washington Center / Washington Township, Noble County
  (July 20, 1996)
• Kewanna, Fulton County
  (August 7, 1996)
• Swayze  / Grayville, Edwards County (October 12, 1996)
• New Lake, Etna Troy Township, Whitley County (December 1996)
• Whitley County (July, 1996)
• Huntingburg, Dubois County (March 28, 1998)
• Spencer / Owen Valley, Owen County (July 17, 2000)
• Bedford, Lawrence County (December 12, 2004)
• Noble County (January 31, 2005)
• Albion, Noble County
  (April, 2005)
• Huntingburg, Dubois County
  (June 26, 2006)
• Bedford, Lawrence County (September 13, 2008)