Krupp decoy site, Military decoy site in Velbert, Germany

The Krupp decoy site was a dummy replica of the Krupp cast steel factory, built on the Rottberg near Velbert and covering 1.5 by 2.5 kilometres. It consisted of shed roofs, a 36-metre wooden chimney, a dummy gasometer and a two-track field railway with two trains circling on an endless loop. Only the control bunker remains today.

Between 1941 and 1944, the installation mimicked the Krupp steel plant to draw Allied bombers away from the real production facilities in Essen. After the war ended, residents dismantled most of the dummy structures and reused the materials for reconstruction.

Locals called the decoy the Scheindorf, or dummy village. The site lies on private land, and volunteers of the Landschaftsverband Rheinland researched and documented it before it was listed as a historical monument in 2013. Visits are possible on the European Heritage Days, on historical walks and during the Long Night of Museums.

The control bunker stands on private land, so it can only be seen during guided visits. These are offered on the European Heritage Days, on historical walks and during the Long Night of Museums. The site lies on the Rottberg near Velbert, about 10 km from the real Krupp works in Essen.

A miniature railway ran continuously at night on an endless loop to suggest active factory work. Light effects and smoke generators added to the illusion for aircrews passing overhead.