I've always heard that yellowstone is so beautiful, so I decided to take the 330 mile trip. I was shocked at the level of devastation, not only from the huge wildfire I later heard about but a lot of the trees didn't have a scorch mark on them just vast areas of grey trees. The pictures do no justice to the extent of it. I can only assume acid rain from all the pollution that was there and the fact that the relatively protected east side of the park was not as bad, but by no means pristine either. A thoroughly depressing trip. There was some hope with new saplings here and there, but if the acid rain continues... Excuse the blown sky in 3, wanted to show the valley details and how many trees were dead more clearly.