How do you get through Spear Pillar?

Spear Pillar connects to Mt. Coronet across 4 floors.

Spear Pillar Pokémon Platinum: Map, Pokémon, Items & Trainers

The Spear Pillar map, plus 3 places you can go inside.

Static encounters, gifts and in-game trades.

DialgaLv.70 · static · Spear Pillar Dialga

PalkiaLv.70 · static · Spear Pillar Palkia

Every way in and out of this location.

In Pokémon Platinum, Spear Pillar is reached from Mt. Coronet.

Spear Pillar leads to 1 other place across 4 floors.

Spear Pillar is stop 58 of 85 following the connections outward from Twinleaf Town. It is a route through the map, not the story order.