King Arthur's Hall is a megalithic enclosure on Bodmin Moor in Cornwall, England, dating to the late Neolithic to early Bronze Age [1]. It consists of fifty-six stones arranged in a rectangle with an earthen bank, measuring approximately 20 by 47 metres. The interior periodically fills with water, and its original ground level remains undetermined.
King Arthur's Hall

| Type | Earthwork |
|---|---|
| Period | 4500 - 3000 BC |
| Country | England |
| Coordinates | 50.5684° N, 4.6425° W |
England