From Bulbapedia, the community-driven Pokémon encyclopedia.
Crossgate Town (Japanese: クロスゲートタウン Crossgate Town) is an anime-exclusive town in Hoenn located somewhere between Littleroot Town and Fortree City. It was featured in the episode That's Just Swellow.
The town is famous for its powerful tornadoes, as well as its annual PokéRinger Tournament. Trainers from all around come with their Flying-type Pokémon and try to become an honorary citizen of Crossgate Town.
Some of the town's residents include Shane and Volt, both competitors in the PokéRinger. Ash was made an honorary citizen after he won the competition.