18th Annual Smithsonian Magazine Photo Contest Natural World
A work of thousands of years - the Yellowstone River valley.
The Yellowstone River continues to carve this massive valley, a work millions of years in the making. The picture is taken from a peak trail in the Yellowstone National Park, looking out over the river valley.
|Camera:||Canon PowerShot SX50 HS|
|Copyright:||© Bill Riggio|