The Simonsberg Mountain is made up of layers of sandstone in various
stages of geological metamorphosis, forming part of the Table Mountain
Sandstone complex. Beneath the sandstone there is a large granitic
intrusion which is believed to have formed the many folds and cracks in
the sandstone layers.
After years of weathering, these "parent materials" have resulted in the
rich red soils which cover the foothills of this mountain. High clay, a
significant fine sand content together with the high levels of rich
organic matter provide a rich medium with a good capacity for water
retention, enabling the vine to establish a deep flourishing root
system.
Vineyard altitudes range from about 150m above sea level on the lower
mid-slopes to 600m above sea level for the higher mid-slopes providing a
range of different micro climates – all with a general southerly
exposition. These micro-climates result in vineyards producing fruit
with distinct differences lending complexity to the final blends in the
cellar.