Single location in the municipalities Illingen, Mühlacker, Mühlhausen, Roßwag and Vaihingen (area Württembergisch Unterland) in the German growing area Wuerttemberg, The oriented to the west to southeast and partly terraced vineyards with 10 to 70% slope cover over 90 hectares of vineyards. Due to the size, it is a very inhomogeneous situation with different conditions. The best parts are in the steep terraces of the municipalities Mühlhausen and Roßwag. The soils consist mainly of shell limestone and Latvians. A share of the situation has for example the winery Steinbachhof,
There are other single layers called heap in the municipalities or growing areas Bad Cannstadt (Württemberg), stronghold (Baden), Weisenheim am Sand (Pfalz) and Zunsweier (Baden).