The easy way to to tell if they are snow goggles is to check to see if they are double paned or not.
If they aren't, then they are probably just standard motorcycling goggles.
Also see if the gaskets allow any free air flow when you are wearing them. Anything that doesn't let decent amount of free air flow will fog up very very very quickly once you start moving around.
Read on another forum: "If someone held a gun to my head and said, "You have to move to Salida tomorrow", I'd probably do it. If they told me I had to go to Breckenridge instead, I think I'd just let them pull the trigger."