A memorial service will remember the lives of those who died in the William Pit disaster.
On Monday, it will be 75 years since an explosion at the pit killed 104 people.
The 1947 disaster occurred when routine firing of explosive charges ignited methane, known as firedamp, and coal dust, causing a large explosion.
Only 14 were killed outright by the pit explosion and burn injuries – the rest succumbed to carbon monoxide created by the blast.
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Three miners, lost underground, were found 20 hours later by rescuers, relatively unharmed by the experience.
The disaster made national news and help and support poured in from across the country.
An open air service will be held at the head of the former pit at North Shore at 11am and all are welcome to attend.
A wreath will be laid, prayers will be said and the names of the 104 miners who died will be read.
William Pit produced coal for 150 years before closing in 1954.
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