Month: January 2019
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Penny Rigg Quarries, Tilberthwaite
This great gash dominates the lower slopes of Wetherlam. Sandwiched between Tilberthwaite Gill and the remains of the Tilberthwaite copper mill, the 18th-century quarrymen were seeking a band of fine quality silver-grey slate. The slate is in a vertical bedding plane meaning extraction is very economical with minimal gunpowder needed. The slates were carted to…