La Forteresse
Commune
An old view of La Forteresse
Location of La Forteresse
La Forteresse Show map of France La Forteresse Show map of Auvergne-Rhône-Alpes
Coordinates: 45°17′44″N 5°24′15″E / 45.2956°N 5.4042°E / 45.2956; 5.4042
Country	France
Region	Auvergne-Rhône-Alpes
Department	Isère
Arrondissement	Vienne
Canton	Bièvre
Government
• Mayor (2020–2026)	Evelyne Collet[1]
Area 1	9.22 km2 (3.56 sq mi)
Population  (Jan. 2021)[2]	336
• Density	36/km2 (94/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	38171 /38590
Elevation	503–773 m (1,650–2,536 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

La Forteresse (French pronunciation: [la fɔʁtəʁɛs]) is a commune in the Isère department in southeastern France.

Geography

La Forteresse is located in the valley of Rival, and is about 550 meters away from Saint-Étienne-de-Saint-Geoirs.

History

La Forteresse belonged until 1929 to the canton of Tullins. Then, on 17 December 1929, it was attached to the canton of Saint-Étienne-de-Saint-Geoirs.^[3] Since 2015, it is part of the canton of Bièvre.^[4]

Population