The Magnet Train is found in Goldenrod and Saffron Cities.
you can ride the magnet train
the magnet train is in Goldenrod city and saffron city. you can use the magnet train once you have beaten all 16 gyms
i need help how do i get to saffron city in heart gold
The copycat gives you a pass, for the Magnet train (Saffron City to Goldenrod City).
In saffron city, down and right from the magnet train line. She asks you to find her clefairy doll
In Saffron City. The odd colored house (roof is purple) in front of the magnet train. She is upstairs.
You have to help the CopyCat girl in the Pink House in Saffron City with her problem (after you defeat Red). After completing her task, she'll give you the train pass. You can then go on the magnet train.
if you have beat all the gyms head to pallet town talk to oak and he opens up mt silver
after you get the magnet train pass use the magnet train
To see a Pokémon's happiness in HeartGold or SoulSilver, you take them to Goldenrod City, where there is a house where you can check your Pokémon's happiness there. It is on player's right-hand side, and is in the little section right below the Magnet Train.
gift it magnet
go to magnet train manger and ask him to give you a train pass