Midway Geyser Serendipity (portrait)

Sunset along Yellowstone National Park's winding Firehole River in Midway Geyser Basin. While capturing this scene I was fortunate enough to catch the Flood Geyser erupt (middle of the photo) while the sky glowed - a pleasant surprise! Midway Geyser Basin is home to the famous Grand Prismatic (in the background, right of center).