sea mark , także: seamark
navigation mark

He wrote a number of plays, including the well-received "Sea Marks," and several novels.

In Scandinavia, cairns have been used for centuries as trail and sea marks, among other purposes.

It was inspired by the old sea marks used for assisting the navigation of ships at sea.

Examples of land-based sea marks are various signal lights and leading marks.

Hamish Hamilton and I went on search for survivors but found nothing, except sea marks of crashed aircraft.'

Beacons come in the form of lighthouses on the coast, but also as electric beacons or other sea marks on the open sea.

Coastal cairns, or "sea marks", are also common in the northern latitudes, especially in the island-strewn waters of Scandinavia and eastern Canada.

Coastal cairns called sea marks are also common in the northern latitudes, and are placed along shores and on islands and islets.

The chart uses symbols to provide pilotage information about the nature and position of features useful to navigators, such as sea bed information, sea marks and landmarks.

Sea marks are used to indicate channels, dangerous rocks or shoals, mooring positions, areas of speed limits, traffic separation schemes, submerged shipwrecks, and for a variety of other navigational purposes.

She often appeared in plays produced at the Phoenix Theater and the Manhattan Theater Club, including "Sea Marks," a two-character play in which she also starred on television.

His early directing credits included Romeo and Juliet, Henry IV, part 2, Other People's Money, Master Harold...and the Boys, and Sea Marks.

Medina Sidonia tried to re-form his fleet there and was reluctant to sail further east knowing the danger from the shoals off Flanders, from which his Dutch enemies had removed the sea marks.

A later description of Læsø tells of reefs, sandy spits, rocks, banks, knolls and sea marks, with the passage between the reefs and those of the Dwale Ground on the Jutland side as being 4 miles wide with 8 to 14 fathoms of water.

Seven typhoons had passed over the region and destruction of survey navigation marks was noted.

"Two," I said, watching them grow, measuring them against the navigation marks.

Tasks include the laying and maintenance of underwater targets, navigation marks and moorings.

When I could clearly see the harbour wall I sheered off from the navigation marks, leaving them to my right, and finally made shore.

The current flows north from Lake Onega to the White Sea, and all navigation marks are set according to it.

Alongside some of these initials are some as yet unexplained symbols or markings which resemble modern-day navigation marks.

Shipping Channels (navigation, marine cartography, navigation marks, navigable waters)

Trinity House of Deptford was founded in 1514 to look after navigation marks in the Thames Estuary.

Vessel navigation lights for operating in darkness as well as navigation marks also were not standardized, giving rise to dangerous confusion and ambiguity between vessels at risk of colliding.

I recently returned the Penguin Orlando Furioso because the two books (which should have been combined into one file anyway - the Kindle never gets any fatter) had no Table of Contents or navigation marks for easy browsing.