Knocknakilla is a megalithic complex on the north-west upper slopes of Musherabeg mountain in County Cork, Ireland, dating to approximately 3500 years ago [1]. The site occupies a level patch of blanket peatland overlooking a deep valley and comprises a recumbent stone circle of five standing stones (each 1.3–1.5 m tall), a radial cairn, and two portal stones with one now fallen [1]. It is aligned north-northeast to south-southwest [1].
Knocknakilla

| Type | Megalithic structures |
|---|---|
| Period | 3000 - 1500 BC |
| Country | Ireland |
| Coordinates | 52.0070° N, 9.0245° W |
Ireland