Circular enclosures of this kind are among the most common field monuments in Ireland, typically consisting of an earthen bank or stone wall defining a roughly round interior space. They are generally associated with early medieval settlement, often serving as the enclosing boundary of a farmstead or a small agricultural holding, though some may have had ceremonial or pastoral functions. What makes Derrynagree notable is not any single enclosure in isolation but the clustering of six of them, suggesting that this corner of Kerry sustained a meaningful density of activity at some point in the early historic period.

The grouping was recorded and described by Eileen O'Sullivan and John Sheehan in their 1996 archaeological inventory of south-west Kerry, a systematic survey that brought many such sites into the formal record for the first time. That inventory was later published in expanded form as part of the Archaeological Inventory of County Kerry, covering the broader south-west of the county and cataloguing hundreds of monuments across a landscape that remains, in many parts, relatively little disturbed. The Derrynagree enclosures appear as entry number 39 in that sequence, described within a grouping that the authors identified collectively, pointing to a local pattern rather than an accidental scatter of unrelated features.