Guided Walk: Dob’s Linn
A free guided walk to the SSSI site at Dob's Linn with geologist John Robson - a general geological excursion to view 400 million year old Upper Ordovician and Lower Silurian strata bearing graptolites made famous by Charles Lapworth, and to the International Stratotype Section of the Ordovician-Silurian Boundary. There may be an option to […]
