you can find Cyrus at the entrance to Mt.Cornet near oreburg city and at the top of Mt.Cornet wich is called Spear Pillar.
Mt Coronet.
Pokemon is lame..
it is found in mount coronet
In Mt Coronet and Trophy Garden (daily pokemon)
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
Mt Coronet.
Pokemon is lame..
You can find Cyrus at mount coronet near the end of the game
it is found in mount coronet
In Mt Coronet and Trophy Garden (daily pokemon)
in or on top of mt coronet
In Pokemon Platinum, the player can find Cyrus at the top of the Spear Pillar through Mount Coronet. The player needs Pokemon who know Surf and Rock Climb to reach the top of the pillar. They must also have freed all three emotion Pokemon and gained the seventh badge.
get the Pokemon platinum guide book
mt coronet use waterfall to find the room it is in
evolve nosepass. you can find nosepass in mt. coronet.
cyrus gives it to you