From Bulbapedia, the community-driven Pokémon encyclopedia.
Bloom Canyon is an anime-exclusive location that was featured in Those Darn Electabuzz!. It was unnamed in the Japanese version.
Bloom Canyon is part of a mountainous area, with unpredictable conditions including whirlpools and strong winds. Star Electabuzz baseballer Corey Demario often trains in the area with his Charizard nicknamed Don. Corey and his family also operate a ranch nearby.