Dustwallow Marsh Quests

Finishing the blackened shield (that takes you to thunder bluff, and back) also counts.
I had forgotten about it, so was stuck for a while :)

That also opened up a few more quests as it turns out.

I was stuck at 44/48 and I was starting to lose hope. But I prevailed!

Popped up north in Dustwallow to visit Stinky and do his escort quest. Went and handed that in at Ratchet.

I went to see Melor Stonehoof in Thunder Bluff, he gave me a quest to go fetch a Deadmire's tooth in Dustwallow. While in Thunder Bluff I noticed the quest The Black Shield could be handed in!

Got another quest to Return to Krog. Once I did that he gave me two more quests to do, and I still had the croc tooth thing left to complete as well. So things are looking hopeful again!

Edit: Just wanted to add that after completing the two quests from Krog, he sent me to Tabetha, who's given me 2 more quests so far. Looks like the Return to Krog quest is the key to opening up a bunch of other quests!

The Call of Kalimdor, given by Gim'hila in Booty Bay, to take the boat to Ratchet counts for this achievement. Oddly I started finishing off these added achievements in Dustwallow, so I 'missed' this one since I didnt do it in order - and this is the one I was stuck at with 49/50.