River mist

On a cold winter's afternoon, as the highway winds down the valleys towards Gold River, the hidden creeks and the river lift steams and mists into the freezing air.

The mist leaves shining droplets on the trees.

The river is warmer than the air; as moisture lifted from the river meets the cold air, it forms a mist, which rises because of the relative warmth of this air.

In winter, here, a blue sky means cold, dry air. It's warmer when the clouds close in; then, the mists descend from above rather than rising from the valleys.