3 



CLASS A. 



Fortresses partly inaccessible, by reason of precipices, clitfs 

 or water, additionally defended by artificial banks or 

 walls, 



e.g. — Comb Moss, Derbyshire.* 



Old Castle Head, Pembrokeshire. 

 Treryn Dinas (Logan Rock), Cornwall. 

 Doward Hill, near Monmouth. 

 Dike Hills, Dorchester, Oxfordshire, 

 Cleeve Camp, Gloucestershire.* 



* See plans on following pages. 



