The castle appears on Ordnance Survey maps from 1839 and 1924, marked clearly on the slope above a small stream that runs from west to east. Despite its prominence on these historical maps, the castle’s documented history remains frustratingly elusive; even the Civil Survey of 1654–6, which meticulously recorded land ownership across Ireland, mentions that Castle Morcho’s townlands belonged to Lord Mount Norris in 1641 but makes no reference to the castle itself.

The fortress managed to survive in some form for centuries, with at least one wall still standing as late as 1936. Unfortunately, that final remnant met an inglorious end when it was quarried away for building materials, a fate that befell many of Ireland’s medieval structures during the early 20th century. Local historian Jeffrey noted this loss in 1979, recording the destruction of what was likely the last visible trace of the O’Morchoe stronghold.

Today, visitors to the site will find no visible remains at ground level; the castle has been completely erased from the landscape. The location itself can still be identified using old maps and the natural features that once defined it: the southeast slope and the small stream below. While Morris Castle may have vanished physically, its presence on historical maps and in archaeological records ensures that this piece of the O’Morchoe legacy, however mysterious, remains part of Wexford’s medieval story.