The "murky swamp" (conjectural name) is a location in the Great Valley. Appearing in The Mysterious Tooth Crisis, it is located a short distance from Tria's Secret Mud Pool. The area has a foul smell, Chomper in particular remarking that "it wouldn't be so bad if (he) lost (his) nose" due to the pervalent stench.
While in the area, Chomper ends up losing a tooth that had fallen out of his mouth earlier in the episode, which he had planned to bring to Ruby to see if she could find a put his tooth back in his jaw.
