1830s exploration on Kilvey.Geologist Sir #WilliamLogan mapped the area to search out coal seams,seen as of national importance in the 1830s. Here's an extract from Logan's first map of #Swansea.The coal seams of the Hill were vital knowledge.We still have one of the rock exposures he studied to decide the position of the coal.There were no trees left so Logan could wander and search for coal and rock outcrops.Logan was the first to understand our coal seams. #KilveyHistory #GeologyHistory

#KilveyHill, Swansea has a thousand year history of coal mining.Swansea was a coal town,even the Romans and Vikings would have burnt local coal.This mine on the Hill shut down in the1700s.It was on the Swansea 2ft Seam.The exposures can still be seen and the entrance to the tunnel is in the centre.The rocks show destructive effects of centuries of copper smoke and sulphuric acid. Famous geologist #WilliamLogan would have visited this site in the 1830s to map our Welsh coalfields.#KilveyHistory