Bellefontaine

Canton of Jura · District: Porrentruy · No published figure for the locality; the municipality of Clos du Doubs has 1'289 inhabitants (31.12.2025)
Part of the municipality of Clos du Doubs

Origin of the name Bellefontaine

The meaning of the name is unknown.

Founding of Bellefontaine

Bellefontaine began not as a village but as an industrial site. It all started with a concession for a blast furnace, granted in 1564 by the Prince-Bishop of Basel together with the chapter of Saint-Ursanne. To use the river's power, the installations were built mostly on an island formed by the Doubs and a mill race. In the 18th century a foundry, forges and an arms factory were added. After the ironworks closed, the site housed a hydroelectric power station, then a fish farm. It belonged to the former municipality of Saint-Ursanne, merged into Clos du Doubs on 1 January 2009.[1][4][6]

History of Bellefontaine

1564. The Prince-Bishop of Basel grants a concession for a blast furnace. Several ironmasters follow one another until around 1580. A first forge reportedly dates back to 1563.[1][4][6]

1753. Prince-Bishop Rinck von Baldenstein has a steelworks built, along with a road to Saint-Ursanne.[6]

18th century. A foundry, forges and an arms factory are set up. The arms factory reaches its peak during the French Revolution.[1]

1794. Having become national property, the ironworks are sold in March to François-Joseph Huvelin.[6]

1797. Pierre François Bornèque and Jean Georges Godefroy Meiner buy the ironworks. Under their management they supply iron for French weapons until 1813.

1840. A joint-stock company is formed, backed by a loan from the canton of Bern. It ceases operations in 1854.[6]

1861. The workshops close after the sudden decline of the Jura iron industry. The company is wound up in 1862.[1][3][4][6]

1864. The site is sold to French industrialists for an arms factory.[6]

1872-1875. The canton of Bern buys the buildings, then sells the blast furnace to a company.[6]

1901. The owner, Léon Guillemeteau, sells the former forge to the Société des Forces motrices du Doubs, founded to build a power station there.

1903. On 17 January, the power station starts supplying Porrentruy and Fontenais. Other Ajoie municipalities are connected up to 1912.[4]

1912. The Forces motrices bernoises, which bought the power station in 1911, take possession of it.[1][4][5][6]

1953. A new power station replaces the old plant, which was in poor condition. It is inaugurated in 1955.[4][6]

1972. On 31 May, the power station stops producing, as there is no money to repair it.[1][4][6]

1975-1976. The site is reused for fish farming (a hatchery) and a retaining dam is built.[6]

2013. A fire damages the former plant.[6]

2015. The Jura government's sectoral hydropower plan proposes developing the Bellefontaine and Moulin du Doubs sites.[6]

Historic sites in Bellefontaine

Industrial island. Most of the installations were built on an island formed by the Doubs and a mill race, which supplied water power first to the ironworks and then to the power station.[1]

Remains in Bellefontaine

Former hydroelectric power station. Power station opened in 1903 by the Société des Forces motrices du Doubs, taken over by the Forces motrices bernoises, rebuilt in 1953-1955 and shut down in 1972. The building was damaged by fire in 2013.[1][4][6]

Sources

  1. Dictionnaire historique de la Suisse, « Bellefontaine » (Dominique Prongué), version du 15.02.2017
  2. Dictionnaire historique de la Suisse, « Bornèque, Pierre François » (Philippe Froidevaux)
  3. Dictionnaire historique de la Suisse, « Saint-Ursanne (village) » (Jean-Paul Prongué), version du 18.05.2020
  4. Dictionnaire du Jura, « Bellefontaine (centrale hydroélectrique), 1903-1972 » (Emma Chatelain)
  5. Dictionnaire du Jura, « Forces Motrices Bernoises (FMB) » (Emma Chatelain)
  6. Denis Moine, Chronologie jurassienne, « Bellefontaine (Clos-du-Doubs) »
  7. Statistique Jura, tableau JU-T.01.01.03, population résidante permanente au 31 décembre 2025
  8. geo.admin.ch (swisstopo), recherche de lieux « Bellefontaine »

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