Pfettrach
It flows into the Kleine Isar , a branch of the Isar , in Landshut . 
<triplet> Kleine Isar <subj> Isar <obj> mouth of the watercourse <subj> Landshut <obj> located in the administrative territorial entity <triplet> Isar <subj> Kleine Isar <obj> tributary <triplet> Landshut <subj> Isar <obj> located in or next to body of water