Landscape
City site
The modern city extends 25 miles (40 km) east to west along a limestone ridge, 1–2 miles (1.6–3.2 km) wide, that separates the salt lake of Maryūṭ, or Mareotis—now partly drained and cultivated—from the Egyptian mainland. An hourglass-shaped promontory formed by the silting up of a mole (the Heptastadion), which was built soon after Alexandria’s founding, links the island of Pharos with the city centre on the mainland. Its two steeply curving bays form the basins for the Eastern Harbour and the Western Harbour.