CLASS B. 
Fortresses on hilltops with artificial defences, following the 
natural line of the hilt, 
e.g.—Mam Tor, Derbyshire.* 
Cadbury (near Wincanton), Somersetshire. 
Hambledon Hill, Dorsetshire. 
Hembury, Devonshire. 
Cissbury, Sussex. 
Badbury Rings, Dorsetshire.* 
Maiden Castle, Dorset. 
Or, though usually on high ground, less dependent on natural 
slopes for protection, 
e.g.—Ambresbury Banks, Essex.* 
Yarnbury, Wiltshire.* 
The Auberys (Redborne), Herts. 
Hunsbury, near Northampton.* 
The entrance ways to early hill-forts were frequently rendered 
ditficult of approach, sometimes circuitous as at Ardoch, dangerous © 
as at Comb Moss, or involved as at the east and west ends of 
Maiden Castle.* Such entrance ways should be carefully noted. 
* See plans on following pages, 


