Steamboat Atlantic sank on Lake Erie after a collision, with the loss of at least 150 lives.

Atlantic was a steamboat that sank on Lake Erie after a collision with the steamer Ogdensburg on 20 August 1852, with the loss of at least 150 but perhaps as many as 300 lives. The loss of life made this disaster, in terms of loss of life from the sinking of a single vessel, the fifth-worst tragedy in the history of the Great Lakes.