This walk explores geological events of the Upper Carboniferous and Permian periods, from approx. 310 to 250 million years ago.
The walk is centred between two locations, along well maintained footpaths, with car parks at both locations, but can be walked or cycled in a day.
The first location is at Clowne, where the exposures are of the basal Permian Rotleigendes Formation and the overlying Wetherby Member of the Cadeby Formation of dolomitic limestones (called dolostones). There is a bonus of a rare Carboniferous coal seam exposure, below the Permian unconformity. Allow about two to two and a half hours for the return walk on this section.
The second location is at Creswell Crags, to the east, where the upper part of the Cadeby Formation, the Sprotborough Member, is well exposed.