A reclaimed gravel pit complex near Cologne, transformed into a protected aquatic and meadow sanctuary along the Rhine floodplain.
Kiesgruben Paulsmaar
Kiesgruben Paulsmaar is a small nature reserve situated in the outskirts of Cologne, Germany, close to the border between the city and the neighboring municipalities of Troisdorf and Niederkassel in the Lower Rhine region. Covering roughly 24 hectares, the protected area is built on a former gravel extraction site that has been transformed into a mosaic of open water, wetland margins, meadow, scrub, and plantation woodland.
The reserve is anchored by three interconnected water bodies, the largest of which dominates the eastern side of the site and is leased to a local angling club, while a smaller, newer western lake is kept entirely free of fish for conservation. Around these lakes a narrow belt of silver willow floodplain forest, reedbeds, white water-lily stands, willow and alder carr, and species-rich dry grassland creates a compact refuge for waterbirds, amphibians, and dragonflies within an otherwise heavily developed urban fringe landscape between Cologne and the Rhine floodplain.
Although modest in size, the protected area plays a regional role as a resting, feeding, and breeding habitat for waterbirds following the Rhine corridor, and as one of several scattered gravel pit reserves that together form a network of aquatic refuges in the Cologne area. Its combination of post-industrial origin, carefully managed angling use, and active ecological recovery from succession makes it a representative example of small-scale, urban-edge habitat restoration in western Germany.
