It's been a few years since I have been in Jasper. However if I recall, Pyramid Bench is also within the confines of Jaspar National Park which like many of our National Parks, has a dog on leash rule in place.
Although I feel for the lady that her dog died, however it is also mentioned that she gives out trail advise and tips of the general area and we always hear that keeping dogs on a leash is the best way to ensure their safety and well being. Although we will never know, had her dog been confined to the leash, there could of been a different outcome...
Stepping back and looking at the big picture though, Jaspar and the other surrounding parks and mountain areas attract hundreds of thousands of trail visits per year so the likelihood of these types of wolf attack incidents will always be far more rare then common.
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.
John Lubbock