Top of Mt Coronet? It's all in what he's said.
At the peak of Mt. Coronet.
After releasing the three Pokemon of the lakes, Cyrus goes to the top of Mt. Coronet
get a chingling on mt coronet and evolve it
beat Candice, defeat Cyrus in vielstone then go to mt. coronet in diamond only
Mt. Coronet is in Pokemon Diamond, Pearl and Platinum, not Ruby, Sapphire and Emerald. You must be thinking about Mt. Pyre.
Cyrus and Jupiter the other two are in the mnt.
spear pillar
He's in the Galactic Veilstone Building, and on top of Mt. Coronet. But not after he leaves Mt. Coronet.
you can get one from Cyrus when you first go to Mt. Coronet
Pokemon is lame..
hes right in front of palkia
At the peak of Mt. Coronet.
You have to go to the top of mt conoret, where you'll have a battle with your rival against commander Mars and Jupiter. After that you'll go to the distortion world where you have to beat Cyrus and fight Gratina. Once all that is completed, team Galactic will be gone from mt Coronet. To find Cyrus and the top of mt Coronet: http://www.mahalo.com/Pokemon-platinum-walkthrough-part-6/
After releasing the three Pokemon of the lakes, Cyrus goes to the top of Mt. Coronet
yes your rival will heal your Pokemon before you fight Cyrus.
If you keep going through Mt Coronet you'll eventually reach Spear Pillar, where you catch Dialga, Palkia and Arceus. You can't fly from Spear Pillar, though.
try going to mt. Coronet