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A former humid tropical forest
The "Cloup d'Aural" is a place that transports us to more tropical destinations and climates than that of the "Causses du Quercy". Thanks to large amounts of phosphate in the soil, the local vegetation is particularly lush and reminds tropical regions. Giant ferns, orchids, and mosses grow at the bottom of the 30-meter-deep chasm formerly used to mine phosphate and extract this natural fertilizer. They are signs of the rainforest that covered the Quercy some 50 million years ago.
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