The Murnauer Moos formed after the last Ice Age in the tongue basin of the Loisach Glacier, which is bordered to the north by a ridge of subalpine molasse. The foreland glacier originally stretched far beyond today's Ammersee to the north. When the glaciers retreated about 15,000 to 10,000 years ago, a postglacial tongue basin lake was formed. Differences in the geological subsoil caused different developments of its individual sections. The Murnauer Moos originated from the southernmost part, it swamped in the dam area of the Molasse ridge, which forced the outflow over today's Loisach bed to the east as soon as the water level had fallen below the crest height of the ridge. The Staffelsee adjoins to the north of the ridge. It is surrounded by other moors to the west. Even further north are the moraine hills and the Ammermoos in the south of the Ammersee, the Ammersee and the Ampermoos on its northern outflow.
The Murnauer Moos was created by silting up over time, when the deposited clay minerals swamped and developed into an extensive moor area. The area includes a diverse landscape with litter meadows, fens and transitional moors, spring funnels, backwaters and fully developed raised moors.
Numerous streams flow through the moor. The largest watercourses are the Ramsach, which has its source in the Plaicken district of Schwaigen and flows into the Loisach, and the Lindenbach, which has its source in Bad Kohlgrub and flows into the Ramsach.
A special feature are the dark Köchel towering over the flat moor area in the south of the area. These are densely forested rocky outcrops consisting of hard glaucoquartzite and formed in the Helvetic Cretaceous period. They were islands in the lake and today act in a similar way in the moss, since forest ecosystems have been preserved on them due to the difficult access, which have been destroyed and destroyed elsewhere by forestry interventions. Two of the Köchel were industrially dismantled, but the operations have been shut down since 2001, have been dismantled and the areas have been renatured.
Source: de.wikipedia.org/wiki/Murnauer_Moos