Look out for the AB sign, indicating Agriculture Biologique, the French for organic farming. You can occasionally visit organic farms, notably along the Drôme Valley, while Agribiodrôme in Die offers information to the public on the subject.
Some restaurants put the accent on organic food too.
Ecotourism has been developing apace in the sensational Vercors Mountains, where you may spot chamois and ibex, plus the odd edelweiss, on guided walks, although the Vercors park’s symbols are the black grouse and the wild tulip. At the heart of the range, the Réserve Naturelle Nationale des Hauts Plateaux is the largest national nature reserve in mainland France. Down below, other precious ecological areas to unearth include the Roanne Valley (see Retrouvance) and the Réserve Naturelle des Ramières beside the Drôme River.