ORIGINALLY WORKING AT PORT DINORWIC SHE MOVED TO THE LLANBERIS QUARRY IN 1936. SHE REMAINED HARD AT WORK UNTIL 1967 AS ONE OF THE LAST ACTIVE STEAM ENGINES IN A BRITISH SLATE QUARRY. SHE WAS IN SERVICE AT THE OPENING OF THE LAKE RAILWAY IN 1971 AND HAS REMAINED SO EVER SINCE.
