Where can I farm Mistscale?

Mistscale Farming Guide
Vol’dun – 2. Kill Scaleclaw Saurolisks around the marked area.Tiragarde Sound. Kill Venomspine Saurolisks around the marked area.Drustvar. Kill Shallows Saurolisks around the marked area.

How do I get Mistscale?

“Gathered by players with the Skinning skill. Can be bought and sold on the auction house.”