The northern portion has vanished into reclaimed agricultural land, taking with it any possibility of understanding the mound's full original dimensions.

A bowl-barrow is a type of Bronze Age funerary monument, typically a rounded earthen mound raised over a burial, sometimes enclosed by a ditch. What survives at Carrignafeela measures 26 metres east to west and 12 metres north to south, though that north-south figure is misleading given the truncation. The central mound itself, rising to an average height of about 0.60 metres, runs 16 metres along its longest east-west axis. More intriguing is the depression at its summit, a shallow concavity measuring roughly 10.5 metres by 6.5 metres, which slopes inward from the edges of the mound toward its centre. Such a feature is not unusual in bowl-barrows and may reflect either deliberate ancient construction or the gradual subsidence of material over a burial chamber below. The site sits approximately 50 metres east of a separate enclosure in the same field, suggesting this corner of Carrignafeela was a place of some significance across a long stretch of prehistory. The survey that recorded these details was carried out by Michael Connolly as part of a wider study of the Lee Valley area in 1996 and 1997.