It stretches for about 140 km (60 mi) from Garies in the south to Springbok in the north and forms a plateau between the Sandveld of the Cape West Coast and Bushmanland in the east, with the Hardveld of the mountainous central Kamiesberg escarpment in the midst.

Also occurring are Ceraria namaquensis, Euclea tomentosa, Rhus undulata, Ozoroa dispar and Tylecodon paniculatus.

After a winter of adequate rainfall, springtime brings widespread and spectacular flowering of Asteraceae and Brassicaceae species that were dormant, Aizoaceae and numerous Scrophulariaceae, Poaceae, Liliaceae and Amaryllidaceae.

The region is considered one of 25 global plant biodiversity hotspots and portions were declared protected in 1999 in order to preserve the abundant wildlife and colourful wild flowers.

The Goegab Nature Reserve near Springbok is a good place to appreciate the floral wonders of the mountains.