Runoff from one of the many geysers in the upper basin takes on the apperance of lava flowing down to the Firehole River. Picture taken near the Giantess Geyser, Upper Geyser Basin, Yellowstone National Park, United States of America.
Canon 5D Mark II
Canon 24 mm – 105 mm L Series Lens
Focal Length 24 mm
F / 11
Base Exposure 1/125 Second
Tiffen 77mm Circular Polaring Filter
3 Images Fused in Photmatix