Wooden boardwalks lead you through the seemingly impossible landscape of Mammoth Hot Springs. Here earth rises in steam, streams boil and grasses turn into colorful terraces of limestone and travertine.
Grassy Spring, Mammoth Hot Springs, Yellowstone National Park, Wyoming USA
Canon 5D Mark II with Canon EF16-35 f/2.8L II USM lens
Focal length 20mm, 1/25 second at f/14, ISO 100