Stone run
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A stone run is a rock landform resulting from the erosion of particular rock varieties caused by freezing-thawing cycles in periglacial conditions during the last Ice Age.
Stone run at Mount Kent, East Falkland
Typical stone river on Vitosha Mountain, Bulgaria.
Stone runs on Weddell Island, Falkland Islands; Circum Peak and New Year Cove from Mount Weddell.
Charles Darwin a few years after his survey of the Falklands stone runs
Stiperstones
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The Stiperstones is a distinctive hill in Shropshire, England. The quartzite rock of the ridge formed some 480 million years ago. During the last Ice Age Stiperstones lay on the eastern margin of the
Stone run
…composition are necessary but not sufficient conditions for the formation of stone runs. Other examples of stone runs occur in England, including at the Stiperstones, Shropshire. They are also known in Pennsylvania. Small examples are probably very widespread where solifluction deposits contain large concentrations…
Manstone Rock
Shattered Cambrian quartzite at the Devil's Chair, Stiperstones
The Devil's Chair, looking northwards
The Stiperstones feature in the literary works of Mary Webb and children's author Malcolm Saville.