THIS ANTICLINE (up-fold) of beds of gritstone, overlying softer shale, is exposed
in a small cliff, undercut by the small River Porter, also known as the Little Don,
shortly before it flows into Langsett Reservoir. The cliff is only about 30 feet
high but drawing those tumbling courses of blocks gave me a slight feeling of vertigo,
reminding me of the cataclysmic Biblical events depicted in the canvases of the Victorian
painter ‘Mad’ John Martin.