Evolution of a dam
 
These following pages relate the chronological account of dam’s construction by the beavers. It enlarges on a period of about 2/3 months from the middle of May to July 2004. We talk about various stages which we describe for having experienced them daily, namely: the place’s choice, the fight against rising, simultaneously the elevation and extension of dam which will reach to the maximum 10 metres long for about 1 metre high and wide to its strategic point: the bed of the stream … The follow-up of dams’ life being just simple routine, made of usual maintenance: filling of breaches and slight raising of the work. In fact, the photographs speak for themselves ...