Yellowstone: Part II, Critters
Walt Staab's CF Duckstravaganza

Yellowstone: Part III, Notable Signs

Chocolate snow signSaw quite a few unexpected signs at Yellowstone, like the one above, that asked visitors not to pour their hot chocolate in the snow so as not to attract wildlife, etc.

Also had warning signs regarding larcenous ravens and a few signs that belabored the obvious, like the small one that said no hiking at the edge of a ravine.

My impression was that with some tourists, you apparently cannot belabor the obvious often enough.