The National Trust booklet ‘The Cerne Giant & Dorset Hill-Forts’ (2000) which is definately available at the Kingston Lacy house and might be available at other Dorset properties, gives the following directions to the hill fort at Eggardon Hill, “From Dorchester take the main road west (A35) towards Bridport......At first the Bridport road follows the Roman road and is characteristically straight. After 5km the main road leaves the old route and drops down into the village of Winterbourne Abbas. The Roman road still exists as a minor road cutting across the downland towards the ancient landmark of Eggardon. Take this quiet road. After 5km the ramparts of the hill-fort are visible at a crossroads. Turn left here towards Askerwell and drive for 200m. Park in the lay-by on the left. Cross the road and take the footpath towards the southern ramparts”.
It adds that the name ‘Eggardon’ is an Old English place name, the hill or down belonging to a man called Eohhere. The earliest documented reference to the place name dates from the Domesday Book in 1086.