Photo of the Day

San Luis Valley landscape
April 1, 2010

San Luis Valley, Colorado

This Month in Photo of the Day: Nature and Environment

Southwestern farmers have long shared community-operated waterways, or acequias, like the 150-year-old People’s Ditch in Colorado’s San Luis Valley.

See more photographs from the April 2010 National Geographic feature story "Water Is Life."

Photograph by Jack Dykinga

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