Loiserberg is located next to the Vogelsang mountain, but the slope faces south to south-east and is somewhat more sheltered from the wind compared to the Vogelsang mountain. There are mountain vineyards up to 380m above sea level, windy and with temperature extremes. Apart from the loess deposits, which become stronger towards the south-east, and the occasional marble lenses, predominantly lime-free rocky brown earths form over silicate crystalline rocks such as paragneiss (Gföhler gneiss), mica schist and amphibolite (Loiserberg “zoisite-amphibolite”), which alternate narrowly.