 Ledringhem is situated in the Cenozoic Era Bassin de Flandre of French regional geology.It is north of the Weald–Artois Anticline.The evidences of the last glacial period, alternatively named "Weichsel glaciation" or "Vistulian glaciation" in Europe, suggest that the ice sheets were at their maximum size for only a short period, between 25,000 to 13,000 BP.