God Of War Ragnarok Mining Glory Treasure Map Solution
First you will need the treasure map that can be obtained by going to the end of the main street in the 2nd part of Nidavellir and using the spear to climb up to the right. The map will be next to the legendary chest.
As for the buried treasure, you will have to go to The Applecore.
Here stay on the main path (from the start). Soon after the first waterwheel puzzle you will go through a house. Then you will jump over a small stream of water. Just after the jump you will see a shiny glow on the floor. Interact with it to get the buried treasure.
Video Guide
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