Wintertusk is an expansion of Grizzleheim that is available after you complete the GH storyline. In my opinion, it is one of the best areas in W101 for experience and character development. It has the best crafting vendors/recipes for many levels to come. There is an overview of GH/WT on the W101 Central website, here: http://www.wizard101central.com/wiki/Location:Wintertusk
