Spirit of the Vale is a level 70 quest giver located at the Sacred Grove in the draenei starting zone of Azuremyst Isle. He is the spirit of the earth element, angered by the unbalance in nature when the Exodar crashed. It starts the following quests:
[4] Call of Earth (Draenei)
[4] Call of Earth (Draenei)
See List of Azuremyst Isle NPCs.