Photo: Denisbin, Eyre Peninsula, South Australia (Some rights reserved)
Inselberg = Isolated hill or mountain rising abruptly from a plain // Colina o montaña aislada que se eleva abruptamente desde una llanura
Wikipedia: An inselberg or monadnock is an isolated rock hill, knob, ridge, or small mountain that rises abruptly from a gently sloping or virtually level surrounding plain. In southern and south-central Africa, a similar formation of granite is known as a koppie, an Afrikaans word from the Dutch word kopje.
Features
Planeta.com