the third gym is in goldenrod city right after ilex forest
You use your strong(est) Pokemon to kill the Gym Leader's Pokemon.
3rd gym
In her Gym
The Sixth Gym leader is Chuck, he has a Hiryama and a Poliwrath.
The third gym leader in poekmon pearl is maylene, a fighting type gym leader.
In Gold the fourth gym Leader is Morty. Morty specializes in Ghost type pokemon, and his gym is located in Ecruteak city.
The gym leader of Mahogany Town. He uses Ice-type Pokemon. You face him as the 7th gym leader in the game.
I have Pokemon platinum the 3rd gym leader always their your probaly just not lucky.
Falkner, the gym leader, has flying type pokemon...if i remember correctly he has a pidgey a pidgeotto and a spearow.
In Pokémon HeartGold, you can find the 3rd Gym Leader in Goldenrod City.
8th Gym Leader: Claire8th GYM Leader is Claire of Blackthorn City. She uses dragon Pokemon. Yes indeed Claire is the 8th gym leader in gold/silver/crystal and she uses dragon type Pokemon just like lance
ecruteak city