Right then,
I went on the Archaeology.ie and keyed in the Site number KE038-022
and panned in and out and shook it all about. Finally I have it.

The map is a number of years old, there is a new road running in
place of the one on the map, it follows a more dirct route into Tralee.

From Castleisland head toward Tralee. You will eventually come see a
small bridge for the train and a roundabout. When you pass the
roundabout you will see a hotel, The Earl of Desmond. That is the building
on the map that the complex, shall we say is sighted, right behind it.
When you zoom to the hotel it shows the land behind liable to flooding.
There is a small stream there alright.