The Garonne (; in Occitan, Catalan and Spanish: Garona; )'s a river in southwest France and northern Spain, with a length of 575 km (357 miles). Origin of the name The name "Garonne" derives from an ancient form Garumna containing the Aquitanian (language related to old Basque) root kharr-, meaning "rock", akin to modern Basque harri, "stone", and a Pre-Indo-European suffix -unn-, -onna which means "source, river", and which can be found in the name of many rivers in Western Europe (such as the… (More on Garonne)