Where in talus chute can i get IW?

Talus chute is WAY too big, can't seem to find it. can some one give me general directions?

I got my IW at the Iron Mines of Muladune. Its on the boss right before The Seer. Purple boss needless to say and be quick he uses it at the beginning then not again.

There is a boss that spawns directly south of Camp Rankor, and he uses IW quite a bit.