Purgatory is a town located in the Ghost River Triangle. It's the approximate location of where Wyatt Earp killed the 77 people that would later become Revenants. Points of interest in Purgatory include the Earp Homestead, Shorty's, and Bobo's Trailer Park. The town is small enough that all the citizens know each other, which is a hindrance to the town pariah, Wynonna Earp.
- Filming for Wynonna Earp and the city of Purgatory take place in Didsbury, Alberta, Canada, with some scenes filmed in nearby Calgary.
- In real life, Wyatt Earp lived all across the western United States of America, but it's never stated what state the show actually takes place in.