There is a lightship in the Shatt al 'Arab bar, which is very completely buoyed and lighted throughout its length from the lightship to Fao, where there is a fixed light.
Telegraphic communication with Europe is maintained by the cable of the Eastern Telegraph Company via Aden, and by the IndoEuropean system, of which the eastern portion from Teheran and Fao to Karachi belongs to the government of India.
The first, called the Persian Gulf section, runs from Karachi to Bushire, from Jask to Muscat, and from Bushire to Fao, where a connexion is made with the Ottoman government line.
In 1857, after some unfruitful preliminary attempts, the Turkish Government agreed to the construction of a line from Scutari to Bagdad on their behalf; this was finished in 1861 and was extended to Fao by 1864, after further lengthy negotiations, when it was linked up with the cable from Karachi which had been laid meanwhile.
Red ochre, for which there is only a limited market, is mined on Ormuz, Abu Musa and other islands in the Gulf; salt, as deposits, on Ormuz and Qishm I., and by evaporation, near Mohammerah, Fao and elsewhere on both sides of the Gulf; gypsum is widely distributed throughout the Gulf; iron, as haematite and pyrites, widely found through the Ormuz series.
Above its mouth at Fao and about 20 m.