Agger (river)

Agger
The confluence of the Sülz and Agger Rivers near Lohmar
Location
CountryGermany
StateNorth Rhine-Westphalia
Physical characteristics
Source 
 • locationSauerland
Mouth 
 • location
Sieg
 • coordinates
50°48′2″N 7°10′27″E / 50.80056°N 7.17417°E / 50.80056; 7.17417
Length69.5 km (43.2 mi) [1]
Basin size816 km2 (315 sq mi) [1]
Basin features
ProgressionSiegRhineNorth Sea
Tributaries 
 • leftWiehl, Naafbach
 • rightLeppe, Sülz

The Agger is a river in Germany, a right tributary of the Sieg in North Rhine-Westphalia. It is 69.5 kilometres (43.2 mi) long. Its source is in the Sauerland hills, near Meinerzhagen. It winds through the towns Engelskirchen, Overath and Lohmar. Near Siegburg the Agger flows into the Sieg.