Well Sir, since you are an unregistered user,
we don't know what state you are in. In my state, as opposed to the two answers (Penn. & Ohio) you have previously received, we could trap this site. All states are not the same.
We have been known to drag or trailer road
kills to a more favorable spot. Most of our wardens can distinguish between taint and fresh blood smell, and we are in no danger from them. Also, the county road crews appreciate not having to remove the road kills themselves.
However, I generally wouldn't trap the site. I would back off 50 to a 100 yards or so and set or snare the travelways to the large bait. If they are legal in your state, snares are very effective in the situation you describe. Given deep snow, snares are sometimes easier to keep working, and target better than traps.
Adios,
45/70,
RKBA !!!