The « Orlets » surface mine of Villemaur-sur-Vanne (Aube) is on the hillside opposite the mine already searched on the saime territory in 1991 (Villemaur-sur-Vanne « Le Grand Bois Marot ») and discussed at the Dijon Neolithic symposium and at the Vesoul Round Table on « Neolithic silex mines in Western Europe ». The site which covers possibly between 25 and 40 hectares, has been sujected to eillergency safeguard excavating over approximately one hectare during four months froim February to May1992. The study is still in progress and only priliminary results are given here.