Day 7, and our last day, of our trip of Yellowstone in the winter.

Heat, water, limestone, and rock fracture combine to create the terraces.
Travertine is deposited as white rock, however the microorganisms and living bacteria
create beautiful shades of oranges, pinks, yellows, greens, and browns.

Here is the link to the gallery of our last day at the park : http://www.pbase.com/bryan_murahashi/da7__skiing_at_bighorn_loop