Yellowstone's hills are cut and painted by the centuries of volcanic activity going on underneath the rock. The red is an iron deposit left by the boiling waters pushed up through the rock.
Cattle ranchers raise their herds close to the park. When the bison population swells these ranchers have problems and consequently so do the bison.
An Audubon Sanctuary preserving the pristine water environment of lake and swamp. This is a reflection in the lake.
