You have to start from resort area, then keep on going up until route 227 and theres the stark mountain. But of course, you have to beat the Pokemon champion before that
you go to stark mountain with buck then go to her house in the survival area
Mt. Coronet and stark mountain
After the Spear pillar, they go to Stark Mountain
in stark mountain
at stark mountain. you have to beat team galactic and go thur stark mountain again. (buck, the guy that follows you, will put the stone back after you get it) YOU MUST SEE ALL 210 POKEMON BEFORE YOU GO TO STARK MOUNTAIN (HEATRAN IS THERE)
Go to Stark Mountain and get the Magmar Stone after Buck has put it back.
They basically disappear for the rest of the game
use your bike to ramp the weird rocks
go back into stark mountain after beating team galactic there.
Go to route 228 south of Stark Mountain, they are fairly common there.
go to the stark mountain and you will see this little cave go in it and you will see them
Its Heatran, and you can get him at stark mountain.