Oude Maas

Oude Maas
Old Meuse
Location of Oude Maas in dark blue.
Location
CountryNetherlands
Physical characteristics
SourceBeneden Merwede
 • locationDordrecht
MouthNieuwe Maas
 • location
Vlaardingen
Length30 km (19 mi)

The Oude Maas (Dutch pronunciation: [ˌʌudə ˈmaːs]; English: Old Meuse) is a distributary of the river Rhine, and a former distributary of the river Maas, in the Dutch province of South Holland. It begins at the city of Dordrecht where the Beneden Merwede river splits into the Noord and the Oude Maas. It ends when it joins the Nieuwe Maas to form Het Scheur.