Weesener Bach, also called the Lutterbach, is a river of Lower Saxony, Germany, a tributary of the Örtze.

[2] As a result, an almost natural, totally healthy stream has been preserved, whose water quality, apart from its upper course near the source ponds, is of the highest category, I-II, and only slightly polluted.

Along the banks and water meadows there are 60 more endangered species, such as vascular plants, mosses, amphibians and reptiles.

When particularly high levels of power were needed for the saw, for example, to cut large oak tree logs, the additional water was indispensable.

In former times, the canal was closed once a year, the water was then fed into the old stream bed, and the sand that had been washed into the pond and deposited there was shovelled out.