Groudon is not in Pokémon Black.
Actually you will not be able to find a Groudon in pokemon black or white. It's because you will not be able to find a Groudon in the wild. The only way you can get Groudon in pokemon black and white you will have to trade with someone who has a Groudon or you can use Global trade.
You cannot find Groudon in Pokémon Black 2.
Groudon can't be found in Pokemon black! :( He can only be caught by trading him from soulsilver or heartgold! Hope this helps! :)
Groudon and Kyogre are unavailable on Pokemon Ranger.
There is no Groudon in Pokémon Crystal.
You can't catch one anywhere in pokemon black, but you can trade it.
No. Groudon isn't available in Pokemon Black and White. It can only be transfered or you can trade for one.
You get Groudon in Pokemon Heart Gold by trading with somebody who's found Groudon in Soul Silver. You can't find Groudon in Heart Gold, you find Kyogre. Soul Silver players find Groudon.
find groudon at the magma cavren and kyogre at marinea cave
No you cannot.
Groudon is unavailible in Pokemon heartgold trade from soulsilver to get groudon.
You can not catch Groudon in black or white but you can trade for it and for the other legendary pokemon! But you need really awesome pokemon to trade for them. Nobody gives out rayquazas or groudons or zekroms for nothing you know! I hope I helped!