Fig. 5
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Projet de digue en 1867 : coupe transversale (lac à gauche). Ex : profil existant ; Di : digue ; N0 : niveau du lac en 1867 ; N1 : niveau du lac envisagé après construction de la digue. Archives départementales du Puy-de-Dôme, AD63, S 0104 p.
Projected levee, in 1867: cross-section (lake at left handside). Ex: existing profile; Di: levee; N0: lake level in 1867; N1: expected lake level after construction of the levee.
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