The soils on the landmark mountain of Gut am Steg, the Zornberg, are slightly more fertile than in the surrounding vineyards of Biern and Setzberg.
The Zornberg consists of the metamorphic rocks paragneiss, amphibolite and Spitz granodiorite gneiss. The latter is similar to the Gföhl gneiss, a so-called orthogneiss, which developed through transformation from a granitic rock.
The Zornberg profile comes from the footslopes. Gravity and erosion formed metre-high layers of sandy, stony material composed of paragneiss, amphibolite and Spitz granodiorite gneiss.