you don't get groudon in heart gold. if you have soul silver, you have to get 16 badges, the red orb at Mr Pokemon's (aka: professor oak's) house above cherry grove town
If you have Pokemon heartgold, you cannot get groundon unless you trade with someone who caught a groundon on soul silver. PS- It has to be from the embedded tower, any migrated groundon will not work.
you find groundon in the embedded tower near the safari zone but you have to get the red orb from mr. Pokemon (blue orb for kyogroe in heartgold)!
I am sorry you can't but you can get Kyore. To get groundon you need to trade
Uu can't trade from a friend
Groundon or Kygore and Rayquaza, Suicune, Raikou, Entei, Ho-oh and lugia
Yes, there is lugia, zapdos, moltres, groundon, kyogre, raquazya, articuno, lugia, and a few others.
You have to get the National Pokedex and go past the battle tower and on your way there you will find a cave with Groundon in it.
You need to import it into the pal park
In Pokemon Emerald, Groundon and Kyogre are legendary Pokemon. You can find them in the Marine Cave and the Terra Cave.
first get all jotoh and kanto gym bages then go to mr.Pokemon and he will give you a red(or blue in heartgold) orb go to the embed tower on rt.47 and you will see groundon(kygor in heartgold) if catch him take him to proffesser oak and he will ask u to catch kygor(groundon in heartgold) ask a friend to trade you then show both Pokemon to proffesser oak and he will give you a jade orb go back to the embed tower to catch raquaza. if u ko one of them they will appere next week.
If they weren't in the original gold and silver, they probably won't be in those ones.
you can only get Groudon on Pokemon soul silver if you have defeated red and got the red orb from m.r Pokemon then go to the saari zone cave. hope this helps :)