A few additional thoughts:
1) It's possible it could be a feral dog but I highly doubt it given the location and remoteness of the area.
2) It's true state governments deny the existence of certain animals.
3) I don't think it is pure wolf given what I've heard on recordings where their howls are very long and steady.
4) As I mentioned in my original post, I have not heard an audio recording of any wolf, coyote, or coywolf that had the force of exhalation that I heard that night. The howls were forceful beyond description. Wolves have a softer, longer drawn out howl. Coyote are more yips or high-pitched howls...almost squeaky. The coywolf (Eastern Coyote) was the closest but still too high in pitch, in my opinion.