In the heart of the meadows of Camille Gaigneux, an organic dairy farmer in the commune of Teillay, a few dozen kilometers south of Rennes, flows a small shallow stream with the sweet name of "ruisseau de l'Etang Neuf." These bucolic meanders between willows, poplars, and alders would fit perfectly in a song by Charles Trenet. Nothing suggests that two years ago, this stream flowed in the form of a straight, one-meter-deep ditch, in a completely enclosed environment of ligneous plants. "It was a real anti-tank trench," recalls Guillaume Rocher, a technician within the Chère Don Isac syndicate. This configuration can be explained by previous human interventions. "We can see on old maps that there was a wetland here that must have already been grazed. The stream must have been dug in this form during the land consolidation in the 1990s to drain the water," estimates Camille Gaigneux. An optimal layout The restoration of the ruisseau de l’Etang Neuf is part of the 2020-2025 ...