in the pewter city museum i think
At a certain time during the year, if you unlocked the Mystery Gift, you can receive the enigma stone over Wi-Fi connection. After you have beaten the Elite 4 and gone to Kanto, if you go to Pewter City, go to the museum and you will meet Steven Stone from Hoenn. You will hand him the Enigma Stone and he will hold quite and interest in it. Then he will ask you to leave the museum with him. And right at the entrance, you will encounter Latias/Latios. Steven will say that the Pokemon is in a fighting spirit, and you will battle it and try to catch it. Soulsilver: Latias Heartgold: Latios
hes not Edit: Not so! You will meet Steven in the Silph Co. after beating Red. But, first, you must get Copycat's lost doll from the Pokemon fan club. There you'll first meet Steven, who will tell you about Latias in HeartGold, or Latios in SoulSilver. You will get from him a Treecko, Torchic, or Mudkip in Silph Co., if you choose the corresponding color. After that you will find him in the Pewter museum. But if anyone's reading this, I don't know how to get him to notice me. Can somebody post an answer? you must capture Latias or Latios for him to leave the museum. he only notices you if you have te enigma stone the he brings you tio the fossil gut at the desk he makes it into soul dew the you get latios or latias outside the museum
You need the Enigma Stone via a Wi-fi event. Then, give it to the attendant in Pewter Museum and he gives you the Soul Dew. Latias will appear outside in Pewter city, where you battle it.
go in to pewter city and you prety much go straight forweds
In Soul Silver Steven is in the Pewter City Museum talking about rocks :/
you have to get the enigma stone(you cant get the stone anymore)
he is at the pewter city museum
You have to have the Engnima stone.
he is in the pewter museum and in silph co
give it to steven stone in the rock museum in pewter city. keep on going to the right when you are the building
Go to the Pewter City Museum. Talk to Steven. Talk to the assistant. When you leave, Steven will talk to you. Battle Latios in Pewter City.
After you get your Hoenn starter and speak to Steven in the Pewter Museum, Steven will be in the Silph Co. bottom floor. He has a Beldum with a Dawn Stone to trade for a Forretress.
Most likely because he's a stone researcher, so he wanted to check out the museum in pewter City which featured some stones and fossils.
He goes to spilec co. in saffron city( the big buliding with the broken elevator)
in the pewter city museum i think
Steven goes to the Pewter museum of science