Hot water pours into Yellowstone Lake from one of the main drainages of the West Thumb Geyser Basin, colorful bacteria and minerals staining the underlying beach in ochre tones. A band of thunderstorms had moved through rather rapidly within the preceding hour, and by this time already passed the Absaroka Mountains in the distance, leaving behind a clean, chaotic and beautiful sky.
Yellowstone National Park WY (17 Sep 13) Looking NE
44.4164, -110.5697