Guigneville sur Essonne 1993

Summary

In July 1993, a farmer in Essonne noticed unusual circles and straight lines in his wheat field. The crops were flattened in a precise pattern, raising suspicions of an unexplained phenomenon. After an investigation, a witness who was a landscape architect revealed he used a similar technique to create designs in grass. Although he was not the creator of these circles, he confirmed the method was identical. This led to the case being classified as human-made, though without ruling out the possibility of mimicking UFO phenomena.

The case did not involve eyewitnesses of a craft, but the geometric patterns generated curiosity. The technical explanation provided by the landscape architect was key to understanding how the designs were achieved. Despite being classified as a case B (explained phenomenon) by GEIPAN, the case remains interesting due to its precision and symmetry, characteristics often associated with crop circles.