Lucus Feroniae, the scene of a great yearly assemblage in honour of the goddess Feronia and subsequently the site of an Augustan colony which took the name of the ancient grove, lay somewhere in the territory of Capena in south-eastern Etruria. The region presents great topographical difficulties. Except for Capena itself, which has been located with some degree of certainty on the hill of Civitucola, none of the ancient settlements, of which there are several in the city's extensiveager, has been definitely identified. This paper has been written in the belief that a fresh consideration of the evidence for the goddess's shrine will aid in determining its location and will present material of value for its bearing on the history of Capena and the origin of Feronia's cult.