Aberfan disaster - 1966 catastrophic collapse of a colliery spoil tip created on a mountain slope and overlaid a natural spring that killed 116 children and 28 adults

Aberfan disaster - 1966 catastrophic collapse of a colliery spoil tip created on a mountain slope and overlaid a natural spring that killed 116 children and 28 adults

Title gore. Please edit and rephrase:

Aberfan disaster: A colliery spoil tip (coal mining waste pile) on a mountain slope accumulated water and collapsed in a slurry in 1966, killing 116 children and 28 adults.

Wasn't this event portrayed in "The Crown"?