Écomusée industriel des Forges d'Inzinzac-Lochrist, Ecomuseum in Inzinzac-Lochrist, France

The écomusée industriel des Forges d'Inzinzac-Lochrist is an ecomuseum in the town of Inzinzac-Lochrist, Brittany, France, set on the site of a former ironworks factory that operated along the Blavet river. It occupies the old physical and chemical testing laboratory of the complex, one of the surviving buildings from the industrial site.

The first plant was founded in 1860 by the Trottier brothers from Angers, drawn by the Blavet's link to Hennebont and Lorient and by local labour. In 1882 the Société générale des cirages français bought the works; Camille-Horace Herwegh modernised them as director from 1912 to 1938, and on the eve of World War II they employed over 3,000 workers. After wartime requisitions and post-war competition, the forges closed in 1966, leaving 1,350 employees unemployed.

The museum opened in 1981 on the initiative of Gisèle Le Rouzic, daughter of the forge worker Joseph Le Rouzic, who gathered oral testimonies from former workers with the help of the Amis association and her pupils. She published three books of these accounts in 1984. The collection now holds about 3,000 photographs and as many objects: tools, machines, navigation instruments, traditional costumes and everyday items donated by the workers.

The museum is in the former laboratory on mail François-Giovannelli, along the Blavet in Lochrist, not on the Hennebont side. Groups are received all year, individual visitors from April to early November and at the start of the Christmas holidays. Guided tours are complemented by regular cultural events.

The factory's main product was tin sheet used to make food cans for the local sardine and tuna fishing industry, which means the site connects the history of metalwork directly to Brittany's fishing traditions. A podcast linked to the museum features personal accounts from former workers, offering a very direct sense of what daily life on the site felt like.