you can find them in diglett's cave in kanto
It's Diglett not Digglet and I think in all the Pokemon games there's a Diglett xD
Go to Vermilion city. After that go to the east and you will see digglet's cave. You can get to digglet's cave only in Pokemon Red, Pokemon Blue, Pokemon Yellow, Pokemon Gold ans Silver , Pokemon Crystal , Pokemon Fire Red ans Pokemon Leaf Green,
DIGGLET......
You can't find registeel in Pokemon HeartGold.
you can't
dugtrio and digglet
yes, digglet
posibley mine did.
Poke flute channel
I have no idea. Probably that guy by the river.
East of Viridian City I believe.
You'd have to trade it from FireRed or LeafGreen.