rock excavation
61Narada Falls Comfort Station — U.S. National Register of Historic Places …
62Abri du Ancien Camp — Part of Maginot Line, Alpine Line Southeast France Built by MOM Construction materials Concrete …
63Ouvrage Baisse de Saint-Véran — Part of Maginot Line, Alpine Line Southeast France …
64Ouvrage Col d'Agnon — Part of Maginot Line, Alpine Line Southeast France …
65Ouvrage Col de la Buffère — Part of Maginot Line, Alpine Line Southeast France …
66Ouvrage Col de la Valette — Part of Maginot Line, Alpine Line Southeast France …
67Ouvrage Croupe du Reservoir — Ouvrage Croupe du Réservoir Part of Maginot Line, Alpine Line Roquebrune …
68Ouvrage Fressinéa — Part of Maginot Line, Alpine Line Southeast France …
69Ouvrage La Béole — Ouvrage La Beole Part of Maginot Line, Alpine Line Southeast France …
70Ouvrage La Déa — Ouvrage La Dea Part of Maginot Line, Alpine Line Southeast France …