Le 5 octobre 2025
Après les mines de sable de Martigues découvertes quelques semaines plus tôt – peu profondes mais colorées, rapide visite de celles de Roquefort-la-Bédoule, aux dimensions incomparables. On y trouve un réseau de grandes - permettant même le passage d’engins motorisés - galeries descendantes de sans doute plusieurs kilomètres de développée, encore en excellent état, un véritable labyrinthe de boyaux creusés dans le calcaire où un début de concrétionnement – gours et stalactites sous les infiltrations – rappelle l’abandon de l’exploitation du sable puis des champignons depuis plusieurs dizaines d'années.
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les galeries, nombreuses et profondes
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début de concrétionnement - stalactites et mini gours - depuis la fermeture au milieu du siècle dernier
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