 Maiden Castle expanded westwards, and the ditch was extended to enclose the neighbouring Hog Hill. The peaks of the two hills encompassed by the new, larger hill fort were separated by a dry valley. A shaft dug into the valley was possibly used as a water source. Almost immediately after the single ditch enclosure was expanded to 19 ha (47 acres), work began on making the defences more elaborate. The existing rampart was heightened to 3.5 m (11 ft), and more ramparts and ditches were added. On the south of the fort, four ramparts and three ditches were added, but because of the steepness of the northern slope of the hill the fourth rampart did not extend all the way round, and only three ramparts were built on the northern side. At the same time, the eastern entrance was again made more complex through the addition of further earthworks, lengthening the approach to the site.
