You go to the second town and look for an old guy standing outside somewhere.
Then you talk to him and click yes. He shows you around and after he gives you a map.
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Its on the pokegear there is a map card.
you get it from the guy in cherrygrove that stands a little to the right of the Pokemon center ------------------------------------------------------------------------------------------------------------------- Which Pokemon Center? useless answer
you get a map card for your pokegear in the second town you visit in the game an old man gives it to you
You get it from the man that gives you the running shoes
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