A rectangular feature, 4 m by 10 m in size, with a low turf covered earth bank around the edges, surrounding a slightly raised central area. Aligned north east to south west, the banks are 1.8 m wide and 0.3 m high. Methodology: 30 m transect survey. Positional accuracy: less than 10 m. Tolerance of accuracy: +/- 5m. K. Laws, EAS Ltd, 3/12/2007.