after you defeat the gym leader in snowpoint city but before that you need to go to some lakes and once you've that you need rock climb which get it after defeating Candice and you go to lake near snowpoint city and then you go to galactic building in veilstone city and you fight some guys and after that you fight Cyrus and he heads to mount cornet and you need to head to mt cornet too and spear pilalr is located on the top of mt cournet
Spear pillar is located at the top of mt.Cornet.
at spear pillar
GO to the spear pillar. go to youtube and write How to go to the Spear Pillar in Pokemon Platinum.
spear pillar on diamond, pearl, and platinum.
After the Spear pillar, they go to Stark Mountain
He is in Spear Pillar.
Spear Pillar
At spear pillar.
in the middle of Mt.C
top of spear pillar
Palkia is at The Spear Pillar's.
Spear pillar