The moor of the pine-spruce-birch-moor forest type is over 500 hectares in size, former moor areas are overgrown with heather. It lies in the eastern calcareous Alpine young moraine and is part of the pre-Alpine hills and moorland. The raised moor is drained by the Kühbächel to the Sur. The use of the moor began around 1850. From the 1920s to 1998, peat was mined here on a large scale and transported away on a bog railway. In 1935 the Schönram Reich Labor Service Camp was set up in Filz.
The first renaturation measure was the damming of the moor lake in a peat cut in the 1970s. Since 2012, an educational trail around the moor lake has started north of Schönram at a hiking parking lot from an information point. The moor area is now looked after by the Bavarian State Forests, and 56 hectares are designated as a natural forest reserve.