Hot Springs - Yellowstone National Park - September 2011

Hot Spings - Yellowstone National Park, Wyoming - September 2011

Old Faithful - Yellowstone National Park, Wyoming - September 2011

Hot Springs - Yellowstone National Park, Wyoming - September 2011

Norris Geyser Basin - Emerald Spring - September 2008

Norris Geyser Basin - Steamboat Geyser - September 2008

Norris Geyser Basin - September 2008

Norris Geyser Basin - September 2008

Mammoth Hot Springs - September 2008

Old Faithful - September 2008

Soda Butte - Lamar Valley - September 2008

Grand Canyon of Yellowstone - September 2008

Grand Canyon of Yellowstone - September 2008

Grand Canyon of Yellowstone - September 2008

Grand Canyon of Yellowstone - September 2008