In Johto you can find it in the Safari zone and in Kanto you can find it in Rock tunnel.
he is at the sea form islands
in eutreaka city with the fourth gym leader morty, go to the pokemon center and he should be there
If you mean how to consider yourself as beaten the kanto region in pokemon soulsilver, then you should find zapdos,moltres, and articuno. You should also beat Red (Ash Ketchum). Once you do that, you can catch Mewtwo.
You can find a department store in any town exept for pallet and the island where blaine the gym leader was.
After traveling to Kanto, you can find it at the Seafoam Islands.
when you get to kanto after the pokemon league you can find it traverling round kanto and you will have to hunt it down hope this helps
you can find them in either Kanto, Johto or by trading Pokemon with other people
You find one in the Cerulean Cave (in Kanto).
after you defeat trainer blue, the last gym leader in kanto, talk to prof. oak. he will give it to you
You can find Latias in Soulsilver throughout the Kanto region.
Firstly, have to defeat the 7th gym leader. Then you go talk to the trainer next to the Pokemon center on Cinnabar Island. He is the 8th gym leader of Kanto, Gary. Gary is in Viridian City.
you can find an eletirizer somewhere in cerulean cave in kanto
You can find a Rock Incense in the Digglett's Cave in Kanto.
In Johto you can find it in the Safari zone and in Kanto you can find it in Rock tunnel.
Blue can be found at Cinnabar Island. You have to defeat the other 7 Kanto gym leaders before you are able to battle him.
His name is Blue, and he is on Cinnabar Island. Show him the other 7 Kanto Badges and he will go to the Viridian City gym. Then, go to Viridian City and battle him at that gym.