Iron Ocean

The Iron Ocean (アイアンオーシャン, Aian Ōshan) is a mutated expanse of water in Black★★Rock Shooter DAWN FALL. It is shown to be located around the San Francisco area.

History
When Artemis chose to attack humanity, the nanomachine known as Arche went out of control and contaminated the sea before being spread into the earth. By the present time, the Arche in the sea gave rise to the Iron Ocean. Humans who are captured by the Titans are taken here, where they are fired into the sea by a Gigantes-type Titan. This draws out energy for the Titans and causes new ones to emerge from the ocean.