Where are the pillars of the Loki Tree case?

Well, you can use the map patch to find the location of the tree, and then find the column.

If there is no map, the magic gate will be transmitted to the portal in the north of Karoo Forest, and then go straight south, maybe a little east in the middle (just look for it in the upper right corner of the head of the stone statue), and then you will see three pillars lying on the ground, and that's it.