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:
"Once you quit hearing sir and ma'am, the rest is soon to follow." - Cormack McCarthy
"Feed me, or feed me to something. I just want to be part of the food chain." -Al Bundy