Pewter Gym

Pewter Gym is an officially recognized Pokémon Gym Saloon in Pewter City. The leader of the gym is Brock, who is specialized in Rock-type Pokémon. It is introduced for the first time in, when challenges the gym leader to an official gym battle.

Part Red & Green
In, the Pewter Gym is first time visited by Redwald and his friends, as Redwald is ready to challenge Brock to a Pokémon battle. The rules of the gym for a trainer who has zero badges, as stated by the officially recognized referee, are that the Pokémon battle would be two on two, and only the challenger would be able to substitute their Pokémon. Once the two Pokémon of one side is unable to battle, the battle is over. Unlike what Redwald expects, however, he loses the battle, and is stated that he would have expected Redwald for a rematch.

The gym hosts the rematch in when Redwald returns with different Pokémon to use in the battle. Brock, in the other hand, sticks to his ace Pokémon Geodude, however substitutes Omanyte with Aerodactyl. As a result, Redwald wins the battle and Brock hands over the Boulder Badge.