18 CORNWALL There are two Looe rivers, one rising in the Bodmin moors receives the overflow of Dozmare Pool, and flowing deep below Liskeard receives the West Looe above the estuary. Duloe, which has a small but interesting circle of upright stones, stands between them and is supposed to be so called as between the two Looes. Before reach- ing Duloe the river has passed under St Keyne, famous for its Holy Well commemorated by Southey in a well- known ballad. There is no river of any importance till we reach the Fal. Rising on Goss Moor, not far from St Columb, and passing Grampound and Tregony, now an utterly decayed place, it meets the Tressilian and the Truro rivers, and all three, insignificant hitherto, suddenly acquire im- portance and spread out into the beautiful estuary of the Fal or Carrick Roads. Here are Penryn creek, Mylor creek, and Porthcuel harbour, commanded by the castle of St Mawes. None of these owe their importance to the sweet waters they bring down ; all their value is due to the tide that flows up to Truro. The entrance to the Roads is found between Zoze Point and Pendennis Point, the latter at one time defended by a strong castle. Almost halfway between the points is the dangerous Black Rock, to which a former Trefusis conveyed his wife and there left her to be overwhelmed by the rising tide. Happily she was rescued by some fishermen. The Helford river is but a creek, noted for its oyster beds, into which a little stream dribbles.
