Not quite 20 years ago the experiment to recover wolves in Yellowstone National Park got under way with a relative handful of Canadian wolves brought into the park. Today that genetic feedstock has produced what biologists had hoped for: a more natural wild kingdom, one with checks and balances on itself.

The Fern Lake Fire, which has gone through varying stages of smoldering and flaring up since it was first spotted back in October, has cost the National Park Service more than $3 million to combat and the bill continues to rise.

Heading to Zion National Park? Check out Traveler's Essential Guide to the park. It provides an overview of the park, some history, information on lodging, camping, and hiking, and a geology section.

Millions of Yellowstone visitors have browsed the Old Faithful Lower Hamilton Store, or enjoyed views of Geyser Hill from its famous knotty pine porch. The vast majority, though, have never heard about a special enclave inside called the Million Dollar Room.