I just went through last month on way to Cooke City. There was nobody at the campground. And there wasnt enough snow that low to ride either. Need to get higher up in elevation. This was right after all the big snowstorms around the New Year. In fact Ive been that way probably 5 times in the last 5 years and never seen enough snow to ride from there. Actually, I dont believe thats an area you can ride, because they plow all the roads. AFAIK, you can only ride guided tours that stay on the unplowed paved roads. And they are all out of West Yellowstone.