When G. and D. Fock documented Wildebeest Kuil in 1968, they recorded 178 individual engravings. Detailed mapping has since revealed more than 400 engravings.
Most of the engravings in the Kimberley area are made with the ‘pecked’ technique: a hard stone was used to chip away the outer crust of the rock, exposing the lighter coloured rock beneath. Sites north west of Kimberley are often on andesite outcrops (as at Wildebeest Kuil and Driekopseiland) while to the south, in Karoo geological settings, the koppies are mostly dolerite. With time, the exposed portions of the older engravings have become as dark as the outer crust through the build-up of patina.
Most of the engravings in the Kimberley area are made with the ‘pecked’ technique: a hard stone was used to chip away the outer crust of the rock, exposing the lighter coloured rock beneath. Sites north west of Kimberley are often on andesite outcrops (as at Wildebeest Kuil and Driekopseiland) while to the south, in Karoo geological settings, the koppies are mostly dolerite. With time, the exposed portions of the older engravings have become as dark as the outer crust through the build-up of patina.
Source: https://www.kimberley.co.za/places/kimberley/free/wildebeest-kuil-rock-art-centre/
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