The navigator stone on top.
(Top Gem is missing, will be given later in main quest line)

Bear = Teleport behind Wooden Gate in Quest
Boar = Teleport behind Door to Sulphurs Spring
Wolf = Teleport behind Door to Lodge of Shandr Dru

Owl = Teleport behind Door to "Bren (Red Vault)
<missing top gem in skyhenge, comes later in main quest>

Rabbit = Chest = Elven Weapon Shard
Fox = Chest = Elven Weapon Shard

Grandmother River = Chest = *Puzzle Weapon* - (Shocking) Rivers Current (Blue Gem)
Slay= Elf (Violet Gem)

Grandfather Sky = Chest = *Puzzle Weapon* - Heavens Might (Blue Gem)
!!! gems...

Salmon = Chest = *Puzzle Weapon* - Dorsal (Yellow Gem; FACHAN slay)
Slay= Fachan (zb. Sulfur Springs, Iwan Rheg; then: Yellow Gem)

Stag = Chest = *Puzzle Weapon* - Antler (Yellow Gem)
Shrine= "Songs of birds, Strum of lyre, open door, welcoming fire." ==> Torr Finn , Fichti village

Father Oak = Chest = *Puzzle Weapon* - (Smoldering) Acorns Flight (2x Yellow Gem)
<missing top gem in skyhenge, comes later in main quest>

** Don't know if the rewards and puzzle weapons are randomized.

Bear = Teleport behind Wooden Gate in Quest "The Sacred Grove"