On a cool late autumn morning, the Mammoth Hot Springs terraces peek out from the steam. The steam acts as a giant softbox casting the golden glow over everything. The terraces are a travertine limestone deposit. Scientists measure deposition in feet per year whereas the Old Faithful area is measured in feet per century. This was taken with a telephoto lens to get in closer to some of the details that might be lost in the larger picture. Telephoto lenses (a 100-400mm lens in this case) aren't just for wildlife photography.
A snow and ice shrouded Lower Falls of the Yellowstone. In late February 2017 the ice cone in front of the falls was nearly half as tall as the waterfall. A brisk wind blowing loose snow helped to create the soft lighting in the canyon.
The Mammoth Terraces are constantly changing. This feature, called Jupiter Terrace, has been growing this spill over for months and will eventually break off and, and the change will continue.
