Bradley Hill, 8·8 km (5½ miles) north-west of Ilchester, is a low hill projecting northwards from the Lower Lias plateau between Somerton and Langport and is capped by a thin band of Rhaetic clay.
The site of the Romano-British farmstead, 53 m (175 ft.) above sea level, is in a prominent and exposed position at NGR ST 4800 3034 (FIG. 1; PL. XVIII A). There are extensive views in all directions, particularly over the valley of the River Cary to the north and over the great expanse of King's Sedgemoor to the west. On the hilltop plateau, the calcareous ploughsoil was 0·20 to 0·25 m in depth, except around the sites of the Romano-British buildings.