- tributaries:
Moselle (outside of the Eifel)
Sauer Prüm Nims Enz
Alfbach Mehlenbach Our (river)
Irsen Ihrenbach Kyll Salm
Lieser Kleine Kyll Alf Üßbach Sammetbach...
- the Prüm are (l = left bank (dark blue), r = right bank (light blue)):
Mehlenbach (r), 14.3 km (8.9 mi),
before Watzerath Mönbach (r), 9.8 km (6.1 mi),...