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The sandstone is a soft rock found throughout the Lower Dauphiné, where it is often the only building stone. This underground quarry is one of the major mining sites in the Drôme.Exploitées since ancient times, these quarries supplied the materials to major projects such as the medieval cathedral of Valencia College Saint-Barnard de Romans. Still used for the construction of the Canal de la Bourne in 1877, molasses is used less and less irreversibly from that time, mainly because of competition from cement.
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Old photograph of the quarries cable. The stone blocks were shipped down the hill with a kind of funicular.
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Old photograph of the underground quarry of Saint-Paul-Trois-Chateau. The stone blocks are mounted on carriages, ready to be lowered to the bottom of the hill for shipping.
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The underground cathedrals of Saint-Paul-Trois-Châteaux / St Restitut.
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Large volumes under the underground cathedrals of the quarry.
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Old photograph of the incline of the underground quarry of Saint-Paul-Trois-Châteaux
AQUATIC ARCH AXA BATTERY BIG BILLANCOURT BLOCK BOUGIVAL BOULOGNE BRIDGE BRITANNY BUILDING BUNKER BUTTRESS CASTLE CATACOMBS CATHEDRAL CB31 CENTER CHALK CHARTRES CHURCH CIMENTERIE CLINIC CONFLANS CORRIDOR COUTANCES CRANE CRUDE DEFENSE DENFERT DOME DOOR DRAWING ESSERENT ETIENNE FACTORY FACULTY FLYER FLYING FORT FRANCE FRONT GALLERY GLASSROOF GRS GYPSUM HERBLAY HONORINE HOUSE INDUSTRIAL ISLAND JAGUAR LADER LADY LEU LIMESTONE LYON MAGINOT MAHON MAP MARLY MEDICAL MEDIEVAL MERY MEUDON MILITARY MINE MINISTRY MONTALETS MONTESSON MONTROUGE MONUMENT MUSEUM MUSHROOM OCHRE OFFICIAL OISE OPERA ORANGIS ORSAY OSSUARY OUR PALACE PALAISEAU PANORAMICAL PAPERMAKING PARIS PAUL PENITENTIARY PILLAR POINT POND PONTOISE PORT PROVENCE QUARRY RAIL RAILING RENAULT RIS ROCHEREAU ROOFTOPS ROOM ROUDOUDOU SAINT SCHOOL SEGUIN SEINE SITE SOUTH STAIRS STATION STATUE STORE SWIMMING TECHNICAL THEATER TOWER TRIEL TROCADERO TUNNEL ULIS UNDERGROUND UNIVERSITY VARIOUS VAUX WAGON WALL WASTELAND WATER WELL