
The much-vaunted Druid pack of Yellowstone National Park wolves is now down to a single female, say researchers -- but there are signs the Yellowstone wolf packs are on the verge of realigning, as there's some potential interpack mating on the horizon.
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Yellowstone Insider Your Complete Guide to America's First National Park
With snowcoach travel ending in Yellowstone National Park the beginning of this week, National Park Service workers are making the transition to spring, with park road crews began making their first pass with plows to clear a lane south from Mammoth.

The lack of snow on the western side of Yellowstone National Park has officials scrambling to come up with a game plan for transporting visitors within the Park when the winter season opens Tuesday.
