Go to Hearthome City then go south east to route 208 then go into mt coronet then go north and use rock climb it is a straight path from that hole you used to get to by rock climb.
Spear pillar is located at the top of mt.Cornet.
GO to the spear pillar. go to youtube and write How to go to the Spear Pillar in Pokemon Platinum.
He is in Spear Pillar.
Spear Pillar
Palkia is at The Spear Pillar's.
Spear pillar
in the middle of Mt.C
After the Spear pillar, they go to Stark Mountain
spear pillar on diamond, pearl, and platinum.
When You Go To Spear Pillar.
you find arcues
spear pillar is only in Pokemon diamond, pearl, platinum