Dark Swamp

The Dark Swamp is a location from Sonic the Hedgehog. It is uninhabited and largely untouched by Doctor Robotnik. According to Sally Acorn and NICOLE, it is in area 12, sector 9, quadrant 32. There is only one known structure in the Dark Swamp: Ironlock Prison.

Sally Acorn travelled to the Dark Swamp with Antoine after recieving a message that she believed may have been from her father. They travelled to Ironlock Prison and, along with Sonic the Hedgehog, found an ancient computer that held maps of all the tunnel under Robotropolis.