|Dr. Barker had also toured the mining areas of South Wales
in England. He also went to Aberfan, where a huge mound of coal slags had
flattened the building of Pentglas Junior and Infants School. These slag
heaps are common sight in the mining areas. These mounds are called ‘coal
tips’. It is a common practice to dump low grade cola, stones and
much at the mouth of mines. Years of dumping results in their assuming the
shape of huge mounds that look like hills from a distance. In Aberfan, the
mounds of pit waste had assumed massive proportions after seventy years
of dumping. This huge mound of coal slag was nearly 8000 feet in height.
Directly below it was the village of Aberfan whose total population was
about 5,000. Constant fear lurked into the minds of the villagers at that
one day, this huge dump of coal slag will crash down on their houses and
wipe out the entire village.