Blackbirds watching from leafless branches against a gray sky – they are the sentinels of winter.
Winter sunrise color over a Utah mountain ridge.
The color of the soil in this photo, taken at Cedar Breaks National Monument in southern Utah, is caused by iron oxide. Parts of it have turned white through "bleaching", a natural process wherein water dissolves the iron oxide and strips its color. Pretty interesting: http://geology.utah.gov/online/pdf/pi-77.pdf
