The Heartland Legacy

Also, the turn-in NPC is inside a small cave near the top of the mountain in Halfhill, can be hard to see since its sort of hidden between buildings and brush.

Once you accept this quest from the chest in the cave, you can no longer clear the rocks at the front of the cave, so you must either have someone else let you out, or hearth/port out of the cave.

Quest progression:

1. 
   
2. The Old Map (from [item=86404] looted from [npc=59639] if you are exalted with [faction=1272] and are best friends with all the farmers Friends on the Farm)
3. 
   
4. Just A Folk Story
5. 
   
6. Old Man Thistle's Treasure (rewards [item=86428] which contains one of each rare gem)
7. 
   
8. The Heartland Legacy (achieves Ain't Lost No More)
9.