Wikipedia
Eifgenbach
Eifgenbach is a -long river of North Rhine-Westphalia, Germany. Its source is near Wermelskirchen, appr. south of Wuppertal. It runs in south-westerly direction, and its mouth into the river Dhünn is near Odenthal, appr. north-east of Cologne.
460 acres of the river basin of the Eifgenbach and its tributaries have been declared nature reserve in order to protect its bio-diversity.
About below the mouth into the Dhünn lies Altenberg cathedral (German: Altenberger Dom), a monastery church built from 1255 on by Adolf IV, Count of Berg in gothic style. Today the cathedral belongs to the German state of North Rhine-Westfalia and is used both by the Protestant and Roman Catholic church as shared church.