Pronghorn herd
A herd of pronghorn resting on a hill outside of Gardiner, Montana.
Mule Deer
Mule deer outside of Gardiner, Montana
Bighorn Sheep
Bighorn sheep outside of Gardiner, Montana
Travertine terraces at Mammoth Hot Springs, Yellowstone National Park in winter
Travertine terraces are formed from thermal water rising through limestone. Heat-loving bacteria and algae add vivid colors to the chalky-white travertine.
Unusual green and pink colors caused by thermophilic microbes
Unusual colors in the travertine terraces are caused by thermophilic microbes
