The ruined furnaces are still visible today alongside the impressive remains of the foundry, cast house and water balance tower that raised wagons 80 feet into the air.
Mae’r olion trawiadol yn cynnwys waliau sy’n dal i sefyll hyd at 17 troedfedd / 5m, tai wedi’u datgloddio, ynghyd â marchnadfa a theml Brythonaidd-Rufeinig.