an arrondissement of the department of the Ardèche, in France, extending over 719 square miles. It comprehends eleven cantons and 124 communes, with 184,569 inhabitants in 1836. The capital is the city of the same name, situated on the side of a hill rising from the right bank of the Rhone, where the Doux falls into that river. In 1836 it contained 4174 inhabitants, employed in making woollen, and trading in silk obtained near them.

Long. 4° 40'. E. Lat. 45° 6'. N.