first you go to cianwood after beating chuck go north until u see a small cave to the left. go in go past the Crasher Wake talk to him if this is your first time going through. Go up the stairs all the way go out the entrance at the top with light coming through. exit avoid as many trainers as possibles go into the first cave u see past a hiker, by the bridge. There are two ladders take the one going up then follow the route. Poof route 48
route 38 and 39. I have also seen in on route 48, 47.
You could find wild Growlithes in Route 48.
You can't get to Route 214 in "Pokémon HeartGold" because there is no such thing as Route 214 in "HeartGold."
You can only catch Vulpix in SoulSilver, not in HeartGold. You can catch it on route 36 and route 37.
its on route 26
Route 43, Route 48 Safari Zone
You can get Mareep on route 32 and flaffy on route 43
Route 214 isn't in Pokemon HeartGold.
Yes you can at route 1
route 32
route 25
In Pokemon HeartGold (And Pokemon SoulSilver) The bike road is on Route 17 in the Kanto region.