There isn't an eevee in Pokemon Emerald. If you go to serebii.net you can find lots of other way to get eevee in the other games
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No you cannot get eevee in emerald, but you can get it in sapphire.
Sorry, but the only way to obtain Eevee in Pokemon emerald, is to trade from Pokemon Fire read, or Leaf green. ;)
first go to mt.pyre and go to the tallest part to the right . By the way you will find chimecho that is rare but not as eevee
You can't naturally obtain jolteon in emerald. First you would have to get an eevee. Unlike other games an eevee isn't given to you. Trade with a friend to get an eevee or jolteon. Keep in mind you need a thunder stone to evolve eevee
you will get an eevee because a flarion is the grown up version of eevee