Foreman Thazz’ril is one of the NPCs you’ll find in Durotar early on in the game.
After helping him to wake peons up, you need to find his pick.
Here’s how you can find Thazz’ril’s pick in WoW Classic.
To unlock the quest, finish the quest Lazy Peons first.
How to find Thazz’ril’s Pick
To look for his pick, you need to go to the Burning Blade Coven.
The exact location of the cave is shown in the map below.
When you enter the cave, you’ll meet a few kinds of monsters including Felstalkers. Look for the source of the waterfall which is one of the higher spots inside the cave.
You should reach this area (image below).
The Foreman’s Pick is under a mini waterfall. Interact with it to loot it.
You’ll probably have to get it before other players take it, and it spawns again later.
Once you have the pick, get back to Thazz’ril and claim your reward of 1 silver 50 copper.