It is Mid January in Yellowstone National Park and we are in a motor coach looking for photo spots off the main road. The only vehicles on the road are snow mobiles or motor coaches with tractor treads. The temperature this morning is at about 20 °. We are drawn to a spot off the road in the main basin where there is morning mist as well as steam coming from a few vents in the snow. There are no fumes, only steam. I shoot handheld at 1/180.