1911 Encyclopædia Britannica/Allier (river)

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ALLIER (anc. Elaver), a river of central France flowing into the Loire. It rises in the department of Lozère, among the Margeride mountains, a few miles east of the town of Mende. The upper course of the Allier separates the mountains of the Margeride from those of the Velay and lies for the most part through deep gorges. The river then traverses the plains of Langeac and Brioude, and receives the waters of the Alagnon some miles above the town of Issoire. Swelled by torrents from the mountains of Dore and Dôme, it unites with the river Dore at its entrance to the department to which it gives its name. It then flows through a wide but shallow channel, joining the Sioule some distance above Moulins, the chief town on its banks. It soon after becomes the boundary line between the departments of Cher and Nièvre, and reaches the Loire 4 m. west of Nevers, after a course of 269 m. Its basin has an area of 6755 sq. m. The Allier is classed as navigable for the last 154 m. of its course, but there is little traffic on it.