Granicus

Granicus River (Kocabas Çayı in modernTurkish) is a water flow in northwestern Asia Minor. The flow begins at the base of the Mount Ida and trends generally northeasterly to the Sea of Marmara.

The banks of this river near the modern-day town of Biga were the site of the Battle of the Granicus, fought in 334 BC between the Greek army of Alexander the Great against the forces of the Persian Empire under King Darius III. This was Alexander's first victory over the Persians. The river was described as having strong, turbulent current, with steep banks and varying depth.

There is also a Granicus Valles region on Mars.