Last month I got this cover back from Eureka Nunavut and I was pleased to not only see a pictorial cancel but also a cachet. There is another similar cachet on the back of the cover. Eureka is known as the garden spot of the Arctic because the area is home to more plants and wildlife than anywhere else on Ellesmere Island.
Over the past few months I've received a number of covers from post offices all across the Canadian Arctic. I've assembled the best of them and put images of them on a page here. Also on that page I've included a google map that shows all of the Canada Post outlets located above the Arctic Circle.