Bring it to the Power Plant on Route 10 in Kanto. You'll have to
Surf down a stream to get to it.
Silaqueen is not an existing Pokemon. It is not found in HeartGold or any other version. It will be found no where.
if you go to the power plant after you have found the missing part and beaten all the gyms he should be there.
Mewtwo can be found in the Cerulean Cave in HeartGold.
Rotom is not found in HeartGold so you will have to trade it from another game
You can find quagsire or wooper in some areas. Quagsire can be sometimes found in Mt. Silver. Quagsire is part ground and part water.
Sneasel cannot be found in the wild in HeartGold/SoulSilver.
The Viridian Forest is in Kanto, the second part of your game. It can be found south of Pewter City or north of Viridian City.
Found in the hidden part of the Lake of Rage, past the maze and near the house, on the northwest side of the lake's maze
They measure by a mechine called tsunameter
Teddiursa cannot be found in HeartGold. It must be cought in Soulsilver on Route 45 or Mt Silver and traded over the HeartGold.
no sorry to say, i have not found ukulele pichu in heartgold or soalsilver
Bagon can be found in Heartgold and Soulsilver by placing items in the safari zone.
What? The under is only found in Pokemon Colosseum? Can you say what city it is in heartgold.
Regirock cannot be caught or found in PokÃ©mon HeartGold.
..... I found the answer on serebii.net that they can be found on route 45 and Mt.Silver.