Somewhere beneath a recently seeded field, southeast of a local road junction, lies what may be a fulacht fia, one of the Bronze Age cooking sites found in great numbers across the Irish countryside. Typically, a fulacht fia survives as a horseshoe-shaped mound of fire-cracked stones and charcoal, the accumulated debris of a method of cooking or heating water in which stones were heated in a fire and dropped into a water-filled trough. At Knockasarnet, however, even that characteristic mound is gone.

The landowner provided the only real account of what happened. A large mound of burnt material had once occupied the northwest corner of the field. At some point it was levelled, spread across the field, and then covered over with clay, leaving the site invisible at ground level. The burnt material, the scorched and shattered stone that would normally identify such a site immediately, now lies dispersed somewhere beneath ordinary agricultural soil. About 85 metres to the southeast sits a rath, a circular enclosed farmstead of early medieval date, a reminder that this corner of Kerry has been continuously shaped by human activity across many centuries. Whether the proximity of the two features is coincidental or reflects something about the long use of this particular piece of ground is not recorded.

There is nothing to see here in any conventional sense, and that is precisely what makes the site worth knowing about. It survives only as a location, a field corner pointed out by a farmer, and a record of what was once there before the ground was smoothed and reseeded.