Grandpa Canyon

From Bulbapedia, the community-driven Pokémon encyclopedia.

Grandpa Canyon is a location in the Pokémon anime. It is found right outside of Neon Town.

When Ash and his friends were traveling through the canyon in Attack of the Prehistoric Pokémon, they learned that some ancient Pokémon fossils were found recently. Along with Gary, the kids began digging in the canyon to look for the fossils.

Thanks to Team Rocket, Ash and Pikachu ended up in a hidden cavern found in the canyon. There, they found that five extinct Pokémon were living alive and well. They weren't happy to be disturbed, and eventually an Aerodactyl lifted Ash out of the cave. He was only saved by his Charmeleon evolving into Charizard and battling it.

In addition to the ancient Pokémon, Ash also found an egg in the canyon. It would eventually hatch into a Togepi that would choose Misty as its owner.