A rectangular enclosure, c42m E-W by 31.5m, terraced into a S-facing slope, banked and ditched except on the S, where it is defined by a scarp. There is a spring within.
Has been associated with building platforms to the W & E:
Nprn's15397, 15398, 15399, 15400, 15401, 15402 & 15403.
(source Os495card; SS88NE13)
Building to SW (Nprn15417) appears to be integral with E-W field boundary and may be later.