Bacteria Mat, Yellowstone National Park. Wyoming

Photo size: 12.2 Mpixels (34.9 MB uncompressed) - 4288x2848 pixels (14.3x9.5 in / 36.3x24.1 cm at 300 ppi)

Photo keywords: b&w, bacteria, black and white, hot springs, Landscape, national park, summer, wyoming, Yellowstone National Park