There is supposed to be some sort of NPC that will trade you a graveller for one of your pokemon. I think he's in the big shopping mall building, but I'm not completely certain, as I haven't played Yellow in a long time.
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trase a graveler and get it back i used gameshark to get a golem but you have to trade if it is gbc g-game b-boy c-color
You have to trade a Graveler to it can evolve into a Golem. This applies for all Pokemon Games.
golem is not found in the wild in any pokemon game. you have to trade a friend your graveler, and it will evolve on their gameboy, and then they trade it back to you.
trade a graveler
first, capture a graveler then go to the union room in any Pokemon center then trade. It evolves. And then you trade back and have a Golem. :)