I'm not so sure. The "body" of the elk looks more like the shadow of a vertical object. The shadow cast seems to be at exactly the same angle as the shadows of all the trees and that it doesn't seem to vary as it would if it were the back of a four-footed animal. I'm not saying its a Sasquatch, I just saying that I don't know what it is but I'm not convinced it is an elk.
That shadow is the bull elk’s rack, and it’s prolly 10’ high from the hoof.