Once we are back in France, we sometimes forget how difficult it can be to explore underground cavities in a tropical environment because of the heat and humidity. Not far from Gounoudoudji, a just-cleared access shaft allowed us to enter unexplored mining galleries, overgrown with colluvium; iron mine near Dogbo (Benin), February 2018. [1328N024 © Jérôme et Laurent Triolet/www.mondesouterrain.fr]

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Reference : 1328N024