Indeed, this is the most interesting question about this ongoing mystery; and the one fact which keeps the majority in our society skeptical to the existence of this creature. And a damn good point as well! However, from my point of view, one which can be logically explained.
So let me begin by answering the question, “Where are the bones?”
The bones are out there – they, as of yet, have not been found nor identified. There are a few stories of strange skeletal remains having been found, turned in to museums and other institutions but have either been lost, or misplaced, or been identified as common wildlife, or remains of missing people. One has only to look in the basement and archives of the British Columbia Museum to find much more stored away in boxes and cases than on display upstairs: material the staff no longer has information on; where it came from; or even when.
It would not surprise me at all if the day comes and the skeletal remains of a Sasquatch are displayed out on a table for the world to see. It won’t be a researcher or hunter, who found them in the bush, being responsible but some young student who stumbled upon them in some long-forgotten museum box or drawer someplace.
In all of my years searching the woods of Western Canada, I have yet to see the remains of a bear which had not been killed by people. I have never seen the remains of a cougar, or wolverine. I have seen the remains of deer and elk, but never in one piece. Nature has a very quick way of cleaning up the dead.
So the quick answer to this most puzzling question is simple: the bones are out there. We just have to find them.