Prairie Dogs

Prairie dogs bark.
Prairie dogs dig.
Prairie dogs play.
And prairie dogs pose for photographs, apparently.

Geysers and Hot Springs

In Yellowstone, there are a lot of geysers. You can smell them even when just driving by, which is a downside. The upside, though, is they are amazingly beautiful. Their colors are unbelievably vibrant and vary from light blue to orange.
And sure, I must admit, after seeing about 100, I thought I was done with them; looking back though, I can honestly say that I truly appreciate them. Bad smell and all.