Magazine

The Conwy stone quarries are easily visible from the A55 a short distance west of the tunnel under the estuary. A microgranite was worked here during the nineteenth century under a number of quarry owners. A series of inclines connected at least four levels with the mill and loading bunkers on a siding off the Chester and Holyhead Railway. Closure came at some point between 1936 and 1945 after an agreement was reached to supply the North Wales Granite Co Ltd with stone from Penmaenmawr. This is the explosives magazine just below the workings.