Yellowstone livestream camera captures the tense interaction at a time when grizzly bears are emerging from hibernation and ...

If you have extra time, Grand Canyon of the Yellowstone ... of Old Faithful and enjoy the geyser's eruption from the second-floor outdoor balcony of the Old Faithful Inn, another national treasure.

In this photo released by the USGS, a plume of steam is seen rising from a newly discovered thermal feature near Nymph Lake ...