Coflein description:
Castle Ring, Pen Offa, is an oval enclosure, 136m by 106m, defined by banks, ditches and a counterscarp, with simple entrances to the north-west and south-east.
As of March 2012, there is permissive access to the fort (which isn’t on any right of way). A signboard next to the road to the north states:
“These woods are available for quiet recreation on foot.
Please follow any directions in relation to woodland work.
Respect the owner’s privacy and property.
Please keep dogs under control and clean up any mess.”
A forestry track leads to the fort, which can then be accessed by a stile.