Use your dowsing machine and search Celestic Town in the area circled on this map:
http://i94.Photobucket.com/albums/l86/Mr_Chubz/290px-Celestic_Townedit.jpg
by finding a poliwhirl with one
have it hold king's rock them trade it to another Pokemon platinum..
Put the King's Rock in the slowpoke.Then,trade it.You will lose the rock and evolve the slowpoke.
Platinum is a mineral, not a rock.
Level 37 for Slowbro, trade holding a King's Rock for Slowking.
A King's Rock can be found in Celestic Town. Go to the left (or left side of birdhouse thing) and use your Dowsing Machin.
its not a rock its an ore
No!
Hidden in the snow
The HM Rock climb is on route 217.
He was the king of pop
You trade Poliwhirl with King's rock You trade Poliwhirl with King's rock You trade Poliwhirl with King's rock You trade Poliwhirl with King's rock