River Inseine

Not mentioned in the canon - but just about every town and city forms around a source of water, usually a river. So it's safe to assume some un-named river runs through the city and country of Quirm on its way to the Circle Sea, and to continue the French parody, why not call it the Inseine?
==Damn, damn, damn....==
Terry has, in his latest novel Snuff, '''given Quirm its river that winds through the city and the nation. With a sort of logic, he has called it the Quire. Now hw the Hell do I rename this article to meet new canonical reality?
DatMaibe answers: 'Quirm's river'? Or keep it and say -In the main trouserleg of time it is named....while in the Pessimalian trouserleg...'
As the Seine winds through Paris, it makes a distinctly Gallic shape...