you have to go to funchisa city in kanto
The 14 gym leader in heart gold is in Saffron City.
14. 8 in the Jhoto region & 8 in the Kanto region
If you have gone in order so far the 14th gym leader should be Sabrina who is in the saffron city gym.
In Pewter City, the first gym leader is in the gym. His name is Brock, and he specializes in Rock-type pokemon. His first pokemon is a Level 12 Geodude, followed by a Level 14 Onix.
beat the 14? there are 16
chouse piplup or turtwig as your Pokemon and get it a level over 14
Bugsy, the Gym Leader of Azalea Town, has the following pokémon:Metapod lv. 14 (lv. 15 in HeartGold & SoulSilver)Kakuna lv. 14 (lv. 15 in HeartGold & SoulSilver)Scyther lv. 16 (lv. 17 in HeartGold & SoulSilver)
I presume that you are talking about versions sapphire, ruby or emerald. If you are then the rock gym leader can be found in ythe first city you visit on your Pokemon journey. To beat the gym leader i would recommend getting a shroomish in the forest just before the city with the rock gym in it. The gym leader's Pokemon are at lvls 12 - 14 so get your shroomish up to about lvl 12 before going to the gym.
once you beat the other 14 leaders go to route 25 and she will be ther
The first gym is in Striaton City. There are three gym leaders for this gym: Cilan, Chili, and Cress. The one gym leader you must fight against is determined by the starter Pokemon you chose. All three gym leaders have a level 12 Lillipup and one more Pokemon. If you chose Snivy, you battle Chili with a level 14 Pansear. If you chose Oshawott, you battle Cilan with a level 14 Pansage. If you chose Tepig, you battle Cress with a level 14 Panpour. Hope this helps!
Roxanna, located in Rustboro City. She specialises rock pokemon, and uses two geodudes lvl 12, and anosepass lvl 14.
March 14 2010