There may also be mentioned the lakes of Bourget and Annecy (both in Savoy), St Point (Jura), Paladru (Isre) and Nantua (Am).
Ain is divided into five arrondissements - those of Bourg and Trevoux in the west, and those of Gex, Nantua and Belley in the east; containing in all 36 cantons and 455 communes.
Bourg is the capital and Belley is the seat of a bishop. Jujurieux, in the arrondissement of Nantua, has the most important silk factory in the department, occupying over 1000 workpeople.
Oyonnax and its environs, north of Nantua, are noted for the production of articles in wood and horn, especially combs.
Of Bourg), a building in the Romanesque style of Burgundy, and that of Nantua (12th century), are of architectural interest.