In the Coolock area there were several Moats or Mounds to be seen. Some of these were cut down and mixed with the soil of the surrounding fields.

The most perfect of these Moats or Mounds is still preserved in thegrounds of "Cadbury’s" factory near Coolock Village. This is a circular mound and from it’s shape we can conclude that it is almost certainly a Bronze Age Burial Mound. Such Mounds are still preserved in many places throughout the country. Many of them have been excavated and from these excavations we have a good idea of what the Mound in "Cadbury’s" possibly contains.

Excavations showed, that Mounds like that at "Cadbury’s" contained Bronze Age Burials. Sometimes the burial remains were cremated and sometimes the burials were just placed in the clay. At other times they were placed in stone lined graves called CISTS. Many of these burials contained grave goods.

Pots called food vessels and urns are often found in the graves. Other grave goods often include daggers, beads and other ornaments.

There is every possibility that if the "Cadbury’s" mound were excavated it would yield some or all of the above features.

If therefore it is, as would appear likely, an early Bronze Age Burial Mound, it is the earliest evidence we have of pre-historic activity in the Coolock area.

There was also another Mound in the middle of a road junction in Clonshaugh. This Mound was 6 metres wide and 2 metres high and may also have dated from Bronze Age times. Another Mound also existed on a low summit in Darndale. Unfortunately this Mound was removed when the present Darndale housing scheme was being built.

Yet another Mound at Bonnybrook, when excavated, proved to be of a much later date.