... The transit Tour Blanche by the Church Tower of Plouneour Trez (178°) was the only mean to enter the port of Pontusval.

... This pyramidal stone tower, painted white, is the oldest beacon in this area, having been built more than hundred and thirty years ago, in the hamlet of Coatanguy on the eastern side of the ba. An Neudenn and other beacons did not exist yet.
The Church of Brignogan was not built till 1939 .