The little river runs through the nature reserve of the same name in the parish of Roggentin in a part of Rostock Switzerland.

This hilly landscape was formed as a terminal moraine in the ice age.

The Kösterbeck is fed from several small runlets, that drain the Teufelsmoor ("Devil's Moor") near Sanitz, and by the Moehlenbäk ca.

The Kösterbeck is crossed at Kessin by the A 19 motorway and empties, after 1.3 kilometres, into the Warnow.

This article related to a river in Mecklenburg-Western Pomerania is a stub.