Eevee Isle

Dimension A
In Dimension A, the island is known as Eevee Island and is a relatively small island off the coast of Sinnoh that acts as a safe haven for all eeveelutions. Any other pokémon or humans are not allowed, with the exception of Stun and his apprentices, simply because they really have no where else to go. Lepidopteons were also shunned from the island until after the events of Stun and the war against Tenebrae.

Eevee Island is composed of three separate groups: the Forest Clan, the Beach Clan, and the Sea Clan. Although they live in peace, they each have their own separate councils and make their own decisions.

It is revealed in Project Stun that humans eventually find Eevee Island and take it over, renaming it Sheba Island and causing eevee to eventually become extinct.

Dimension B
In Dimension B, the island is known as Eevee Isle, but is otherwise very similar to its counterpart. Like in Dimension A, it is relatively small and Sinnoh is the closest landmass.