You have to navigate through the ice cave
blackthorn
Its right behind blackthorn city
Yes.
After mahogony town befor blackthorn
blackthorn city
Go to mahogany town then to route 44 into the ice to Blackthorn City. It worked for me.
in the dark cave near blackthorn city
To Blackthorn City.
Blackthorn city, (east of mahogany town).
you just go south of blackthorn city
Blackthorn City, next to the Pokemart
It is at he way to blackthorn city