I would say cat track. I've seen grizzly tracks in the snow.... only minutes old, if that. We were deer hunting up by sullivan lake in NE WA several years ago and we kept smelling a faint musty sweet smell, after at least a half hour of hiking and smelling the stink off and on, we cut down a ridge and just inside the timber were fresh grizzly tracks, he had been following us and headed down hill when we got close to him. There is no mistaking a grizzly track!