Sinopsis

Round the coast of England there are many prehistoric earthworks of great extent and strength. These fall generally under the heads of hill-top fortresses and promontory camps. The works comprised under the former head are so arranged as to take the greatest possible advantage of natural hill-tops, often of large size. On the line where the comparatively level top developed into a more or less precipitous slope a deep ditch was dug, and the earth so removed was in most cases thrown outwards so as to form a rampart which increased the original difficulties of the sloping hill-side.