Chillwind Cave is a wide, icy cave in the Winter Woods . The cave gets its name from the icy blasts of wind that eminate from it and keep the winter woods at a near-winter temperature year round. The cave is actually a long tunnel that cuts through the Shield Mountains and connects the Northlands with the Northern Wastes beyond. 

It is through this cave that the Pale Orc from the Northern Wastes were able to migrate south, under the Shield Mountains and emerge into the Winter Woods