Buoyage

It has not been considered necessary to make any special inspection of particular ports or rivers in the United Kingdom, the greater number of the Committee being already more or less familar with the buoyage of our coasts.

Source: wiktionary

There is no description available of the vessel, which served here until it was replaced by buoyage marking these channels .

Source: wiktionary

In the absence of a route leading from seaward , the conventional direction of buoyage generally follows a clockwise direction around land masses.

Source: wiktionary

For the more important channels the marking is done principally by means of buoys, and this makes the buoyage systems of very special importance in North America, and accounts for the large number in proportion to the area considered; more than half of the buoys of the world are in North America.

Source: wiktionary