The boardwalk is your only safe passageway to view the Mammouth Hot Springs Terrace.

Bison migrate to lower grounds during the winter months. Along with the thermals, a nearby stream or river is an added bonus, usually with less snow making it easier to forage for an edible meal.

Obvisiously, this animal was smart enough to walk around the potentially scalding trap.  Its temperature and chemical makeup could easily be life threatening.

Sculptured by nature.

No, not a Caribbean water hole, just Yellowstone's Heart Spring adding color and a little warmth to the cold snowy landscape.

A live Christmas postcard.

A unique feature of Yellowstone National Park is the turbulent pools of hot muddy water as exemplified here by the Fountain Paint Pots.

Thanks to the underground thermal features throughout the park, creeks and streams remain frozen free.

Scenic mixture of conifers, snow and the Firehole River.

The Morning Glory Pool is 23 feet deep, and is considered one of the most beautiful hot springs in the Upper Geyser Basin.

Unmatched winter magestic beauty.

Bison have excellent insulation from the surrounding frozen landscape of winter. 

Snow and evergreens always make another picturesque photo op.

Another great view of the Heart Spring.

Castle Geyser