Geography

The Colorado River Basin is in crisis.  Climate change is reducing its flow and its biggest reservoirs are shrinking. The seven U.S. states that use the river are negotiating cutbacks...

The snowpack is crucial to the West’s water supply, ecosystems and economy. But climate change threatens to make the region’s snowpack thinner and less reliable. We talk to a leading snowpack researcher about how scientists are analyzing the past, present and future of the West’s snow.

With population growth around Denver prompting fierce competition for water, investors want to import a new supply from the San Luis Valley, but many farmers and ranchers who depend...

Last update: September 21, 2022 Percent of total capacity Source: US Bureau of Reclamation

The Colorado health department is investigating a plume causing high levels of forever chemicals in the raw water supply of Adams County.

PARKER, Arizona – South of Headgate Rock Dam, beyond riverbanks lined with willow and mesquite, the broad floodplain of the Colorado River spreads across emerald fields and sun-bleached earth.  The...

This page features drone footage and ground-based photos of the Green River, near Moab, Utah, and north of Canyonlands National Park. The Green, which begins in Wyoming's Wind River...

This page features aerial and ground-based photos of St. George, Utah and the Virgin River outside of Hurricane, Utah. St. George in a city in southwestern Utah on the Arizona...

Supporters of airborne snow surveys dispute “hotspots” study on water forecasts

While snowpack and reservoirs are strong, forecasts for streamflows, which build as melting snow reaches streams, are expected to be below normal across southwestern and southeastern parts of the state.