 Peveril Castle in Castleton is roughly triangular in shape, about , on top of a hill overlooking the Hope Valley.The land slopes steeply away from the castle's perimeter, forming an almost sheer face to the south east, and the winding approach from the north is the most practical way to the castle.Not only was the site naturally defensible, but its prominence would have allowed the castle to be a highly visible symbol of the builder's power.