LKS pictures Point 6 – Entrance of the Nou Maulin swallow hole during the summer (photo : G.Rochez) Entrance of “Nou Maulin” swallow hole Entrance of “Nou Maulin” swallow hole Access to hydrogeological monitoring site (Nou Maulin) Point 5 – Lorette – Rochefort cave river (photo : G.Rochez) Gauging in Rochefort underground river Structural measurements in “Grotte du Parrain” Point 2 – Surface piézométrique dans la grotte du Fayt (photo : G.Rochez) Entrance of “Grotte du Pré au Tonneau” Stromatopores roof in “Grotte du Fayt” Installation sonde dans “Grotte d’Eprave” Probe installation in “Grotte d’Eprave” Probe installation in “Trou de l’Hôtel” Entrance of “Grotte du Thiers des Falizes” Point 7 – Carrefour du Thier des Falizes View of the water table inside the Thiers des Falizes cave (photo : G.Rochez) Installation of the flurometer probe (photo: SC. Cascade). Tracing test Vauclusian spring of Eprave in spate condition Vauclusian spring of Eprave in low-water condition Point 8 – Piezometric surface in the cave of Eprave Point 6 – Piezometric surface of the Nou Maulin (photo : G.Rochez) Point 6 – Well to access the monitoring station of the Nou Maulin (photo : G.Rochez) Point 6 – Entrance Gallery of the Nou Maulin swallow hole (photo : G.Rochez) Point 4 – Pré au Tonneau cave (photo : G.Rochez) Point 3 – Mortier losing stream (photo : G.Rochez) Point 7 – Thier des Falizes crossing place Echo beach : confluence of two underground rivers in the cave of Fosse aux Ours (photo : SC. Cascade) Point 7 – Thier des Falizes crossing place South underground river of the Fosse aux Ours (photo : SC. Cascade) Installation of a probe in the Cave of Eprave Entrance of the Trou de l’Hôtel Installation of a probe in the Eprave Cave Point 7 – Crossing place of Thier des Falizes Monitoring device installed at the Trou du Muret Point 4 – Pré-au-Tonneau in spate condition Point 4 – Pré-au-Tonneau in spate condition Point 7 – Carrefour du Thier des Falizes The Trou du Muret becomes a Vauclusian spring in spate conditions Point 1 – Losing stream of the Wamme at On Vauclusian spring of Eprave Fond des Valennes swallet.