Possible Coyote?

Another ambiguous picture of what may or may not be a coyote. There are only two possibilities for this one, coyote or dog. I have never observed a dog in this area either in person or on camera. It's simply not in an area where dogs are likely to roam free or where they would go if free, though that certainly doesn't mean a loose dog couldn't go in there. The grainy and shadowy quality of picture is unable to confirm either way.