Designation for vineyards with a certain slope or inclination, which mostly produce better quality wines due to several reasons. The great advantage of sloping sites, especially in viticulture, was recognised early on. In ancient Rome there was the winged word "Bacchus amat colles"(Bacchus loves the hills). In general, vineyards with a slope of 5 to 20% (~12°) are regarded as hillside sites and above that as steep slopes or steep hillsides. In Germany, about 60% of the vineyards are planted on slopes or steep slopes. The steepest sites in the world include Dézaley (Vaud-Switzerland), as well as sites in the Moselle (Germany) and Wachau (Austria) growing regions with up to 100% inclination (45°). This results in a much more intensive sun exposure, especially on steep slopes facing south. Of course, soil type and climate also play an important role. Monorack railways (monorail rack railways) are also often used in such vineyards.