"Iron Age" . . . "Castle Old Fort is a small Iron Age hill fort near Walsall Wood, in the West Midlands, England. Its interior is now occupied by a house.The fort covers 3.5 acres (1.4 ha) acres in an ovoid shape, measuring 170 m (560 ft) from north to south and 130 m (430 ft) from east to west. It has an earth rampart surrounded by a ditch, with an entrance in the south east."@en . "Castle Old Fort"@en . .