The town is situated on a former island in the Loire ("en Loire assise") at the confluence of the Aron river. The right channel of the Loire was dammed up to reclaim land and now remains as an arm ("la Vieille Loire") stretching upstream to the centre of town. The Loire at this point is an important navigation point as it forms the junction between the Canal du Nivernais and the Canal latéral à la Loire both of which are within the town boundaries.
Decize is an ancient settlement first noted in the Commentarii de Bello Gallico where Julius Caesar settled a dispute involving the Decetiae from whom comes the town's name—in Roman times the town’s name was Decetia in Gallia Lugdunensis.2 In later times it belonged to the counts of Nevers, from whom it obtained a charter of franchise in 1226.3
In 2011 a new port for pleasure boats in the "Bassin de la Jonction" between the Lateral Canal and the Loire was opened.6
INSEE commune file https://www.insee.fr/fr/metadonnees/geographie/commune/58095-decize ↩
"Decetia, Decize". Digital Atlas of the Roman Empire. Retrieved 1 June 2021. http://imperium.ahlfeldt.se/places/2248.html ↩
One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Decize". Encyclopædia Britannica. Vol. 7 (11th ed.). Cambridge University Press. p. 913. /wiki/Public_domain ↩
Chisholm 1911. - Chisholm, Hugh, ed. (1911). "Decize". Encyclopædia Britannica. Vol. 7 (11th ed.). Cambridge University Press. p. 913. ↩
Population en historique depuis 1968, INSEE https://www.insee.fr/fr/statistiques/4515315?geo=COM-58095#ancre-POP_T1 ↩
"Nièvre : le port de Decize élargit son offre". France 3. 3 June 2015. https://france3-regions.francetvinfo.fr/bourgogne-franche-comte/nievre/nievre-le-port-de-decize-elargit-son-offre-738395.html ↩