AVEYRON, a department in the S. of France, in the ancient province of Guienne. Area 3429 square miles. It is divided into five arrondissements as follows:—

Arrond. Cantons. Communes. Pop., 1851.
Rodez..... 11 75 105,558
Isparion ..... 11 43 67,698
Milhan..... 7 46 65,625
St Affrique ..... 6 41 60,038
Villefranche ..... 7 54 92,234
42 259 394,153

A portion of this department is mountainous, but about one-half is under cultivation, nearly one-fourth heath, one-tenth woods and forests, and rather more than an eighth part meadow land. Vineyards occupy about one-twelfth part of the cultivated land. It has mines of copper, lead, silver, iron, zinc, and antimony; besides considerable coal-fields of great value. The inhabitants are extensively engaged in the rearing of cattle; and there are manufactures of paper, woollen and cotton goods, and leather, to which water-power is skilfully applied. Aveyron exports corn, chestnuts, almonds, hemp, wool, wax, cheese, timber, and cattle. The capital is Rodez.