Ponter's Ball Dyke is a linear earthwork located near Glastonbury in Somerset, England [1]. It crosses at right angles an ancient road that continues to the former island of dry land in the Somerset levels surrounding Glastonbury Tor [1]. The earthwork consists of an embankment with a ditch on the east side [1]. It is built across the ridge of land between Glastonbury and West Pennard [1]. Both ends of the ditch and dyke disappear into moorland, formerly swamps [1].
Ponter's Ball Dyke

| Type | Earthwork |
|---|---|
| Period | 500 BC - 1 AD |
| Country | England |
| Coordinates | 51.1382° N, 2.6681° W |
England