Charicific Valley

The Charicific Valley is a location in the Pokémon anime.

Located just outside of Violet City, the Charicific Valley is a training ground for Charizard so they can become stronger. It is distinguishable by its rock formation in the shape of a giant Charizard.

The only known human who lives in the valley is Liza, who, along with her Charizard Charla, protects the valley from danger.

Ash left his Charizard here to train when he was heading through the Johto region. Noticing how much his Pokémon enjoyed spending time in the valley, and noticing that it was one of the weaker Charizard there, Ash decided to leave it in the valley so it could train. Since Charizard's been in training, it's become a lot stronger, learning many new attacks including Dragonbreath, Overheat and Steel Wing.