I'd go for whitetail deer too, but you could get pigs where you are too. Direction of travel, heading towards you, deepest part of the track equates to the tips of the toes.
Dunno what size hands you have, but I have seen whitetail buck prints on a recently disked field that were about 2.75 - 3" wide and 3.75 long, about the size of my four fingers held together. Between the size of the deer, and the condition of the ground, that guy left BIG tracks!