Spirit Mounds

Spirit mounds are important aspects of Uthgardt culture.
Uthgardt barbarians bury their dead under cairns and earthen mounds. These burial sites are scattered throughout the east in out-of-the-way places. Each Uthgardt tribe also has a single spirit mound that is sacred to its people. A spirit mound is where members of the tribe gather to revere Uthgar, honour their ancestors, make sacrifices to their totem animal spirit, and choose a new great chief when the old one dies. The Uthgardt believe that their ancestors trapped their totem spirits under these mounds so that they and their descendants could commune with the spirits and gain their power.

Ancient Relics

"First, you must prove yourself! When human barbarians came to these lands, they fought our kind and stole our relics, burying them in the ground. The humans built altars to Uthgar, their god-king, atop these relics and surrounded their altars with burial mounds. Go to these mounds, retrieve one or more of our lost relics, and bring them here as tribute. Do this, and your path will be made clear. There are many paths you can take. The more relics you deliver, the more paths you will have to choose from. Several evil giant lords stand ready to oppose you. You can ruin all of their plans by defeating just one of them. Which one that is remains to be seen."
THE ORACLE
In Storm King's Thunder, the adventurers are told by The Oracle in the Eye of the All-Father of the history of Uthgar and the giants of old. The adventurers are then tasked with reclaiming relics from the spirit mounds, to grow in strength against the might of the giants.
To offer a relic as tribute, it must be placed inside the mithril circle on the floor of the oracle chamber. Eigeron's ghost knows this, and Harshnag can figure it out if the adventurers are stumped. When this is done, the relic disappears forever.

Spirit Mount locations

Beorunna's Well

Beorunna's Well is a spirit mound in the Druarwood in the Shadowed Vale home to the Black Lion and Red Tiger tribe.

Raven Rock

Raven Rock is a spirit mound in Nilfgaard home to the Black Raven and Grey Wolf tribe.

Stone Stand

Stone Stand is a spirit mound in the Mere of Dead Men in the Shadowed Vale. It is home to the Blue Bear tribe.

Flint Rock

Flint Rock is a spirit mound between Fog Harbour and Sarastobin in Uthgardt Wastes. It is home to the Elk Tribe.

Great Worm Cavern

The Great Worm Cavern is a spirit mound bordering Ashlands and Anauroch. It is home to the Great Worm tribe.

Shining White

Shining White is a spirit mound south of the Highlands in the Uthgardt Wastes. It is home to the Griffon tribe.

Morgur's Mound

Morgur's Mound is a spirit mound in the northeast of the Ashlands. It is home to the Thunderbeast tribe.

Grandfather Tree

Grandfather Tree is a spirit mound hidden in the forests in the southern Uthgardt Wastes. It is home to the Tree Ghost tribe.