Tourist activities include spelunking and a variety of sports, such as skiing and kayaking. Lozère is near the Parc national des Cévennes[?].
The préfecture (capital) is Mende[?].
... can form a flammable[?] or even explosive mixture. For example, potassium nitrate is the oxidizing ingredient in black gunpowder.
Nitrates covered in Wikipedia ...
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