Yes you have to trade a Pokemon for the Larvitar with someone you know that has Pokemon version gold. The anser above is rong, you can't trade between gold and emereld. You need Fire red or leaf green, and another GBA and a link cable. Or you could just get a GameShark if you don't mind cheating.
You can't really...Well not unless you trade one from a Fire Red/Leaf Green or if you're using an Emulator stick one in the game with "Advanced Map"
No you cannot catch Larvitar in Pokémon Emerald.
Larvitar cannot be obtained unless you trade it from leafgreen or firered.
Trade from Firered or Leafgreen.
Trading is required since it's not obtainable in the game.
Yes, but only through trading from Gold, Silver, Crystal, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold or SoulSilver.
Yes, if you trade it you will automatically get the national pokedex on Pokemon Emerald
No you cannot catch Larvitar in Pokémon Emerald.
Egg.
Larvitar cannot be obtained unless you trade it from leafgreen or firered.
Trade from Firered or Leafgreen.
Trading is required since it's not obtainable in the game.
Yes, but only through trading from Gold, Silver, Crystal, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold or SoulSilver.
Larvitar is not in Ruby/Sapphire/Emerald naturally. However, you can get a typhlosion if you trade it from Pokemon Colloseum.
you can get the national dex from prof. birch after deafting the the elite four. then you can trade larvitar from leafgreen or firered. you can find larvitar in the seventh island in leafgreen/firered
Nowhere, because you can't find one in Emerald. You'll have to trade one from FireRed/LeafGreen.
look on pokemon.marriland.com
You can catch larvitar i Pokemon FireRed and Pokemon LeafGreen,but most people uses a gameshark.