You can find them inside the Safari Zone or find Digglett in the patch of grass just beyond the entrance to the Safari Zone and evolve it.
No... Sadly no one has found one.... But yes there is a shiny dugtreo
You can not.
In Pokémon HeartGold, you can find the 3rd Gym Leader in Goldenrod City.
You cannot find Deoxys in HeartGold, or SoulSilver. You can only get Deoxys through trading or at a Pokemon Event.
Groudon is unavailible in Pokemon heartgold trade from soulsilver to get groudon.
No, you can not get registeel in HeartGold or SoulSilver. The only way to get it, is by trading
no you can't
Mt.silver
goldenrod
in safari
You cant!
trade