• A bull elk bugles in Yellowstone National Park

    Yellowstone

    National Park ID,MT,WY

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  • Craig Pass Closed for the Season; Mammoth to Norris Closed Sept. 14-30

    The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. The road from Mammoth to Norris is closed for two weeks—traffic should detour over Dunraven Pass. More »

Green Dragon Spring

Steam rises from this hot spring which emerges from a small cave.
 

Except on warm summer afternoons, steam frequently fills the cavern of this intriguing hot spring. Visitors must wait patiently for a glimpse of the sulfur-lined cave and boiling green water.


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Did You Know?

Summer Crowd at Old Faithful.

At peak summer levels, 3,500 employees work for Yellowstone National Park concessioners and about 800 work for the National Park Service.