Can You Dig It?

This achievements once again proves at least one of the following:

1. 
   
2. Blizzard devs don't play their own game
3. 
   
4. They enjoy spitting in the face of people who play this game for collection/completionism purposes
5. 
   
6. Blizzard devs have the math skills of a 4-year old and they did not realise players would need at least 17 weeks to complete this
7. 
   

F-tier design, along with all the achievements for the researcher events

It seems you can only get 3 Sniffenseek digs per week, so this achievement will take 16-17 weeks to complete.

Here are the ways to get 3 digs each week:
1 dig gets automatically added to [npc=201426].
[item=205982] from [item=205983] from weekly quest A Worthy Ally: Loamm Niffen.
[item=205984] is sold by [npc=204693] for 3 [item=204985] or 1 [item=205188].

This has got to be the most time-gated (and grindy if you intend to also get the map from the 1500 weekly rep quest) achieve in the entire DF expansion. WTF Blizz?