Yellowstone National Park

Thermal Pools

West Thumb Geyser Basin, Yellowstone National Park, Wyoming, September 12, 2014

2014-09-12#5656

Larry L. Jackson

Lesser Scaups

Aythya affinis - female and juveniles.

Gull Point Drive, Yellowstone National Park, Wyoming, September 12, 2014

2014-09-12#7254

Larry L. Jackson

LeHardy Rapids

Yellowstone River, Yellowstone National Park, Wyoming, September 12, 2014

2014-09-12#5680

Larry L. Jackson

Mud Volcano

Yellowstone National Park, Wyoming, September 12, 2014

2014-09-12#5723

Larry L. Jackson

Dragon's Mouth Spring

Yellowstone National Park, Wyoming, September 12, 2014

2014-09-12#5729

Larry L. Jackson