Actually, Groudon is in "The Cave Of Origin" in Sootopolis Town.
To awaken him, you have to have the Red Orb!
Hope this helped! :P
Chat with our AI personalities
Groudon is in the far back section of the route up a mude slide (need mach bike) look up the route on bulbapedia for a visual guide
its on route 115 but you have to have kyogre,groudon and rayquaza
Unless you can Surf, you can only go South on Route 115 from Meteor Falls.
He's where you left him in the Weather Tower, in the top floor in the top left corner. He'll tell you that there's some strange drought on a certain route. Fly to the route he tells you and search in the grass there to find Groudon.
Go to route 116 and search there and you'll find a entrance. go in it and there is groudon. Hint: go with lots of ultra balls and Pokemon which knows sing or hypnosis
Go to route 115 and use dive in the dark water then look for the cavern go inside then use dive again and you will appear in the cavern.