Saulx (river)
 The Saulx is a 115 km long river in France right tributary of the Marne. Its source is near the village Germisay. It flows generally northwest through the following départements and towns:Haute-Marne: EffincourtMeuse: Montiers-sur-Saulx StainvilleMarne: Sermaize-les-Bains Pargny-sur-Saulx Vitry-le-François The Saulx flows into the Marne in Vitry-le-François. Its main tributaries are the Ornain and the Chée.