It looks like a standard coyote with a decent winter coat. See the white collar behind the shoulder? I don't know if wolves get that, but coyotes definitely do and that one has it. I did a quick Google image search and didn't see any wolves with that coloration, but it is common for coyotes.
Here's an exaggerated illustration of the collared coloration:
Wanted: 50 Beowulf Brass, .500 cal bullets
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