You have to go through the Ice Path to get to Blackthorn. To get to the Ice Path, you have to go east of Mahogany Town. To go east of Mahogany town, you have to have defeated the seventh gym.
you get get it in Ice Path before Blackhorn City and after Mahogany Town.
you go to the city cianwood and speak to the baby
Dragon's Den (Blackhorn City)
you find it in blackhorn city next to the poki mart
by being awesome
You have to go through the Ice Path first.
blackhorn city i think its next to mahogany town
you have to get the team rocket dudes out of the radio tower
What? The under is only found in Pokemon Colosseum? Can you say what city it is in heartgold.
There is no saffron city.
In veridian city
It is in blackthorn city