Elliot Colliery was sunk in1883; at West shaft with its East shaft following in 1889. The mine was owned by the Powell Duffryn Steam Coal Company Ltd and at its peak of production over a million tons of best quality coal per year were raised. The mine employed about 2800 men. The colliery closed in 1967 resulting in the demolition of the colliery and scrapping off of all. Happily it was decided to keep the East Winding House along with its Thornewill and Warham steam engine. The engine is in full working order and whilst not steam powered can be seen in motion. It is located near New Tredegar at NGR SO147027. I found the staff very helpful here and only to happy to show me around.