They are too few to suggest organised food production, yet there they are, preserved in the black, charcoal-rich clay of a fulacht fia, the type of monument found across Ireland wherever prehistoric communities needed to heat water in bulk. A fulacht fia typically consists of a horseshoe-shaped mound of fire-cracked stone accumulated beside a water source, the stones having been heated in a fire and then dropped into a trough to bring the water to a boil. The Corbally example sits on wet ground at the eastern edge of the ridge, where it meets marshy terrain roughly two hundred metres west of the River Shannon, with Lucas Pond, a wide linear wet ditch, just five metres to the east. The proximity to standing water is entirely characteristic of such sites.

The mound came to light not through dedicated archaeological survey but because a pipe had to go in the ground. Excavated under licence number 02E1177 by Edmond O'Donovan ahead of pipe-laying works on the Limerick Main Drainage Scheme, the site revealed two distinct areas of burnt stone, clay, and charcoal spread across a footprint of 10.8 metres east to west, 3.5 metres north to south, and surviving to a depth of just 0.24 metres. That shallow survival is itself telling: truncation of the mound is evident on the north, south, and western sides, meaning what was uncovered is almost certainly a fragment of a once larger deposit. The burnt sandstone inclusions varied from fragments as small as 30 millimetres up to pieces 150 millimetres long, embedded in compacted black clay at densities of 80 to 90 percent in places. Beneath all of this, excavators found a layer of distinct black sandy clay interpreted as the original ground surface, the old sod sealed under the mound when it was first built. The site fits a broader pattern: comparable monuments were recorded at nearby locations during both the Limerick Main Drainage Scheme and the Southern Limerick Ring Road works, suggesting a Bronze Age landscape considerably more densely occupied than the modern suburb above it might imply.

The site itself is not accessible as a visitor destination; it was excavated in advance of construction and is no longer visible at ground level. What remains useful, however, is the broader Corbally ridge, which retains a sense of its topographical logic, a slight elevation meeting marshy low ground, exactly the kind of edge that Bronze Age communities seem to have favoured. Those interested in following up the excavation findings can consult O'Donovan's reports from 2002 and 2004, which detail the stratigraphy and address the small, unresolved question of those two cereal grains, whether they drifted in accidentally or hint at cultivation somewhere close by.