About 90 percent of the Colorado River's water comes from snowmelt in the Upper Colorado River Basin, a large swath of Colorado, Utah and Wyoming.
The EPA is considering using robots and other sophisticated technology to help prevent mine "blowouts" or clean them up if they happen.
KUNC reporter Luke Runyon, who covers the Colorado River basin and water issues in the American West, explains why.
Bob Rawlings was at the helm of the Pueblo Chieftain for more than 37 years and was a powerful force in protecting Southeastern Colorado's water resources. Rawlings died earlier this year at age 92.
CDPHE recently upped its enforcement on groundwater monitoring with smaller landfills that accept up to 20 tons of waste per day.
Manure runs downhill. It’s just a matter of where it ends up.
A short stretch of the river drops into a narrow channel that allows to run deeper, faster and colder.
The US and Mexico signed a new agreement to share water from the Colorado River, and improve conservation in Mexico, particularly on farms.
The agreement includes spending millions of dollars on conservation projects and drawing up plans to deal with drought and climate change.