↑ Crusing on the Gr. Brombachsee - Ramsberg am See lake center. The Altmühlsee barrier is a dam that completely surrounds the lake. The catchment areas within the Frankenalb karst area - i.e. from the Möhrenbach onwards - are usually not necessarily consultant of the water circulate. Its longest tributaries also move into this lower section of its course, namely the Schwarzach, previously additionally the Sulz, which has now been lower up as a result of the usage of its valley and water for the main-Danube Canal and its predecessor, then the one which, to a certain extent, represents it as we speak Canal itself and finally the Weiße Laber, all left-hand tributaries, whose great length and catchment area reflects the much more distant location of the left watershed to the Rhenish system on this space. Ditch the whole length. Higher reaches segments which can be still open upwards, for example from the Preuntsfelden Weggraben sewage remedy plant. Mill canals are usually not included, nor are the numerous small-scale river divisions and oxbow lakes from the center reaches onwards. Most of the nameless drainage ditches, which usually run from the slopes within the large and flat floodplain next to the river with none open inflow, are additionally missing. Essing in an outdated river subsequent to the canal, approx. NN the "Little" Blautopf, a karst spring on the edge of the village of Weihermühle, which has grown together with Essing.
