Yellowstone hot springs

Yellowstone hot springs are really hot: water temperature in some of them exceeds the boiling point (which is 94°C at the Yellowstone elevation). So the ripples you see on the surface are not caused by the wind. The water is boiling.

More pics on my photoblog: http://www.skorobogatov.com/photoblog/

Aleksandr Skorobogatov: press and reviews on the books