Slate, Sail and Steam

Porthmadog was once host to a wide variety of industries. Its slate went to Germany and exists there today on the roofs of thousands of dwellings, as well as to America, where the Boston Court House is roofed with Welsh slate. The slate often travelled in Porthmadog-built vessels – over 200 sailing ships were built in Porthmadog between 1830 and 1914. The Moelwyn mountains'' mines, which held the ...