Mammoth Hot Springs in Yellowstone National Park

Mammoth Hot Springs in Yellowstone National Park, originally uploaded by Carl's Photography.

Here is another photo I made while at Mammoth Hot Springs in Yellowstone National Park.
1/200 sec at f/10 ISO 100 with "Sigma 10-20mm f/4-5.6 EX DC HSM" at 10 mm focal length on a Nikon D80