bosphorus

Bosporus. The Bosporus is 19 miles (30 km) long and has a maximum width of 2.3 miles (3.7 km) at the northern entrance and a minimum width of 2,450 feet (750 metres) between the Ottoman fortifications of Rumelihisarı and Anadoluhisarı. Its depth varies from 120 to 408 feet (36.5 to 124 metres) in midstream. sportster tank