They were in the snow and 3 finger spread shape, which looked like a 4th claw at the base. After a little Internet searching appears to be what they were.

Still haven't "seen" one yet, but if these are the tracks then they moved about 15-20 miles from where I've seen them, but I just saw the one set.

Of course Mountain Lions are now officially in Iowa, but I've heard they can move hundreds of miles a night if then choose. Their tracks are a little harder to verify.