Wikipedia
Grosne
Grosne is a commune in the Territoire de Belfort department in Franche-Comté in northeastern France.
Grosne (river)
The Grosne is a long river in the Rhône and Saône-et-Loire departments in central eastern France. Its source is near Saint-Bonnet-des-Bruyères. It flows generally north. It is a right tributary of the Saône into which it flows in Marnay.