by fishing or using surf
GYARADOS
At route 111,112,and 113
Fire-type Pokemon are weak against Water, Rock, and Ground-type attacks.
Reshiram is a Dragon- and Fire-Type Pokemon, which no other Pokemon has the same combination. Reshiram is the only Fire-Type that isn't weak to Water-Type Pokemon. Reshiram has the highest Special Attack of ALL Fire-Type Pokemon.
Fire type pokemon: Chimchar, Tepig, Ponyta, Ho-oh, Magby, Infernape. Water type pokemon: Oshiwatt, Piplup, Krabby, Magikarp, Gyarados, Buizel.
GYARADOS
you get a .pokemon called Turtwig grass type, chimchar the fire type and piplup the water type
There is no way to ONLY encounter fire pokemon, there are places where there is a high rate to catch fire pokemon. But there is no place where you can only catch fire pokemon.
At route 111,112,and 113
when ash failed to catch is first Pokemon he swore to catch all 649 Pokemon but sadly hes only cought 30 Pokemon O.o so maybe he was wrong but genarlly he uses a fire type, a grass type, a poison type, a flying type, a electric type(pikachu duh), and a water type =) though THATS NOT ALL POKEMON!
Volcanion is a Fire-Water type, and it was introduced in the Generation 6 games, Pokemon X and Pokemon Y.
Fire-type Pokemon are weak against Ground, Rock, and Water-type attacks.
Fire-type Pokemon are weak against Water, Rock, and Ground-type attacks.
In HeartGold you can catch Kyogre.
Reshiram is a Dragon- and Fire-Type Pokemon, which no other Pokemon has the same combination. Reshiram is the only Fire-Type that isn't weak to Water-Type Pokemon. Reshiram has the highest Special Attack of ALL Fire-Type Pokemon.
There are no wild Fire-type Pokemon available to catch on Route 2. The earliest you can get a Fire-type Pokemon if you didn't pick Tepig is the Dreamyard, where you're given a Pansear if you chose Oshawott.
Fire type pokemon: Chimchar, Tepig, Ponyta, Ho-oh, Magby, Infernape. Water type pokemon: Oshiwatt, Piplup, Krabby, Magikarp, Gyarados, Buizel.