I put this in field photos too but thought I would put here too...
I believe it canine and not feline. The part is I am hoping it is coyote and not the bigger cousin. Some thing to note, I found a dead elk calf on Saturday. I went back into the area today (Tuesday). The entire calf was gone. No blood, hear or anything. Like it carried off and I found this track in the mud near where the calf was.
This was taken in South Eastern Wyoming near Arlington