How to get red orb?

I caught a groudon but how do I get a red orb to make it into primal groudon?

The Red Orb is in the Holon Volcano

Is it a quest or does it just lie on the ground?

Pretty sure it is just on the ground

If it isn’t, complete the Holon quests, then it’ll surely be on the ground

Ok thanks.I have to explore the holon region I didn’t touch it till now for some reason.

Just checked in the website it’s a item on the ground.