Photo of the Day

Picture of a fisherman waist deep in the Yellowstone River in winter
December 21, 2021

Winter River

The Yellowstone River is the only undammed river in the continental United States, running freely for 692 miles. In this photo from the April 1997 issue, a fisherman tries his luck in the river at Two Ocean Plateau, Wyoming.
Photograph by Annie Griffiths, Nat Geo Image Collection

Go Further

Subscriber Exclusive Content

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history