Somewhere in Mt. Mortar. Or you can buy it in the Pokeathlon Dome for 2,500 points on Wednesday or Friday after you get the National Dex. Or a wild Pokemon may be holding it, possibilities include: Horsea, Seadra, Kingdra, Dratini, Dragonair, or Dragonite. There is a 5% chance of them holding it.
Credits to Serebii.net
Chat with our AI personalities
you have to catch a dragon Pokemon holding a dragon scale
Mt. Mortar or you can buy it in the Pokeatholon Dome
Go to the lake of rage and catch or deafeat red gyarados and you will automatacly get the dragon scale^ That's a Red Scale. Trade it to Mr. Pokemon for the exp. share. The Dragon Scale can be found in Blackthorn City after defeating Claire.Capture a dragon type pokémon or receive the drantini in that cave near the dragon gym.You find it in Mt. Mortar in the Johto region. You need to have surf and waterfall available and you find it in the area where a school boy has a level 30-40 Seadra.
After you beat the E4 you go to the dragon master in the blackthorn dragon cave.if you have 5 or les Pokemon in your party, BAM! dratini when he shuts upYou find dratini in dragon den at blackthorn city. You can also get it from the old guy in dragon den
The poke on bagon caries the item dragon scale. To find a bagon, go to the back room of the meteor falls cave. Finding a bag on is 25% and dragon scale is about 5% of those, so be patient