1991         

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 Mardon Cowbag | Wiltshire
   England
   1991 early May
 Chilcomb | Hampshire
   England
   1991 May 06
  no specification
 Yarnbury Castle | Wiltshire
   England
   1991 May 13
   Oilseed rape 18 m | 59 ft
 Dandridge | Tennessee
   United States
   1991 May 18
 Moskwa | Moskwa
   Russia
   1991 May 24
7 m | 23 ft
  6 circles and 2 rectangles
 Arreton | Isle of Wight
   England
   1991 May 24
   Oilseed rape 9 m | 30 ft
 Henley-in-Arden | Warwickshire
   England
   1991 May 25
 Idstein | Hessen
   Germany
   1991 May 27
   Oilseed rape
 Lerchenberg | Rheinland-Pfalz
   Germany
   1991 May 27
   Wheat
  no specification
 Marden | Wiltshire
   England
   1991 May 27
 Whiteparish | Wiltshire
   England
   1991 May 27
   Wheat 75 m | 246 ft
 Whiteparish | Wiltshire
   England
   1991 May 27
   Wheat 37 m | 121 ft
 Whiteparish | Wiltshire
   England
   1991 May 27
   Wheat 37 m | 121 ft
 Husbands Bosworth | Leicestershire
   England
   1991 May 31
   Oilseed rape
 Newton St Loe | Avon
   England
   1991 late May