The Sernitzmoor is approximately 600 -acre large and is located east and west of the city Greiffenberg. It is one of the most valuable swelling moor and flow through bog in Brandenburg. It is the largest sub-region within the EU Life project setting. The Sernitzmoor is the beginning of a large swampy valley area, which eventually merges seamlessly into the swampy Randow -Welse Lowland. "Our" Sernitzmoor is composed of up to 11 m thick peat substrates. However, widespread lake sediments in Sernitzmoor have also pointed out that the valley was a lake after the last ice age.
Its size and biodiversity of flora and fauna, made the bog already unique in its unused condition. With the beginning of the smallholders grassland use (during 17th century) the number of species increased even further. A mosaic of open sedges, orchids rich wet meadows, sparse reeds, natural spring-fed streams, swelling bog forests and thickets dominated the area and offered a variety of habitats for species that are strongly endangered today. Already in the 18th Century first drainage started, hoping to make the country usable. First Trenches were created and peat was harvested from the 19th Century. During the 2nd half of the 20th Century multiple expansions of trenches led to a sharp drainage and a dramatic decline of species.