|This location exists primarily within the Adventures of Sonic the Hedgehog continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
Tranquil Gulch is a small western town that often comes under attack by Robotnik because he wants to turn it into a casino-like town called Gambler's Gulch. Its people are very stern in not letting things happen and also trust their sheriff.
The town's mayor is Mayor Chestnut, who appointed Sonic as the local Sheriff to get rid of Robotnik after the previous Sheriff (a rabbit) was scared away by Six Gun Pete. Once Robotnik was defeated, Sonic retired and was appointed the local bartender, leaving Miss Possum as the new Sheriff.