Pewter Gym

Pewter Gym is the local gym of Pewter City, and one of the gyms needed to battle if a trainer wishes to enter the Indigo League. If you defeat the leader, he or she will present you with the Boulder Badge, previously known as the Grey Badge. Pewter Gym mainly houses Rock-type trainers, but temporarily became a Water-type gym.

History
Pewter Gym was built in the early days of Pewter City, and the first gym leader was a man called Axel, who mainly battled with a Rhyhorn. He was preceded by Flint, a young trainer in the gym who became leader when Axel died. Flint's main Pokémon was a Graveler. He also owned a Rhydon. After a while, Flint decided to resign as gym leader and compete in the Indigo League. The gym had a hiatus for a few years until Flint's son Brock stepped up to the position with his Onix. Three years later, Brock left the gym to be a Pokémon breeder, and Flint became leader once more.

Leaders

 * Axel
 * Flint Takeshi
 * Brock Takeshi
 * Lola Takeshi
 * Forrest Takeshi

Trainers

 * Jerry
 * Liam
 * Edwin