Steep-sided mountains or ridges that rise abruptly
out of adjacent monotonously flat plains in deserts. Ayres
Rock in central Australia is perhaps the world’s best-known
inselberg. These are produced by differential erosion, leaving
behind as a mountain rocks that for some reason are more
resistant to erosion. Many inselbergs are produced by a process
known as circumdenudation, where surrounding rocks
are removed from all directions, by ice or rivers, leaving only
the prominent isolated knob or mountain behind.
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