Sea of Marmara
| Sea of Marmara | |
|---|---|
| Marmara Denizi (Turkish) | |
The Bosphorus highlighted in red, the Dardanelles strait in yellow. | |
Sea of Marmara Location of the Sea of Marmara within Turkey | |
Bathymetry and surrounding relief | |
| Location | Southern Europe and West Asia |
| Coordinates | 40°40′N 28°00′E / 40.667°N 28.000°E |
| Type | Inland sea |
| Primary inflows | Simav River, Biga Çayı, Nilüfer River |
| Primary outflows | Turkish Straits |
| Catchment area | 11,500 km2 (4,400 sq mi) |
| Basin countries | Turkey |
| Surface area | 11,350 km2 (4,380 sq mi) |
| Average depth | 494 m (1,621 ft) |
| Max. depth | 1,370 m (4,490 ft) |
| Water volume | 3,378 km3 (810 cu mi) |
| Islands | Marmara Island, Avşa, İmralı, Prince Islands, Paşalimanı and Ekinlik Island |
| Settlements | Istanbul, Bursa, İzmit, Tekirdağ, Balıkesir, Çanakkale, and Yalova |
The Sea of Marmara, also known as the Sea of Marmora, the Marmara Sea or Propontis /prəˈpɒntɪs/ (ancient Greek: Προποντίς /pro.ponˈdis/), is a small inland sea entirely within the borders of Turkey. It links the Black Sea and the Aegean Sea via the Bosporus and Dardanelles straits, separating Turkey's European and Asian sides. It has an area of 11,350 km2 (4,380 sq mi), and its dimensions are 280 km × 80 km (174 mi × 50 mi). Its greatest depth is 1,370 m (4,490 ft).