NAR SH57NW9

A rectilinear enclosure set on low lying marshy ground, possibly a later Prehistoric settlement enclosure or, less likely, a medieval moated site.
The enclosure takes the form of a parallelogram and is about 45m north-east-south-west by 35m. It is defined by a bank or rampart with a ditch and counterscarp bank. The entrance is in the short north-east front. Within, a low near circular mound roughly 10m across may represent a roundhouse site.

Source: RCAHM Anglesey Inventory (1937), 112

John Wiles 13.08.07