Stormcage Containment Facility

Stormcage Containment Facility was a prison in the 51st and 52nd century. River Song was a prisoner there. (DW: Flesh and Stone)

In the 52nd century, River escaped Stormcage having been sent a letter by the Doctor, recruiting her to meet with him in America 2011. (DW: The Impossible Astronaut) After they defeated The Silence's occupation of Earth, the Doctor returned River to Stormcage. (DW: Day of the Moon)

She again escaped Stormcage to warn the Doctor about the Pandorica opening. (DW: The Pandorica Opens)

She was later released under the custody of Father Octavian, who needed her assistance in a mission involving Weeping Angels. When their mission was over, River was presumably returned to Stormcage, though she did hope she had earned a pardon through her actions. (DW: The Time of Angels / Flesh and Stone)

Behind the scenes

 * According to an interview with Alex Kingston, she thinks the Stormcage is some kind of a prison planet and it is particularly unpleasant to stay there. Through the window of River's cell, heavy rain can be seen.