Rocky Valley

At their highest point the slate canyon walls tower over seventy feet above the river below.

Rocky Valley was mentioned in travel books as a place of exceptional beauty as early as 1897.

[3] In 2007 some of the bridges over the Trevillet River were washed away during flash floods caused by heavy rains.

The lowest, Trethevy Mill, is derelict and was used in the eighteenth century to manufacture woollen textiles.

Modern scholars believe that, as the labyrinths were carved on a quarried wall with a metal tool, they are likely to be less than three hundred years old.