The U.S. Fish and Wildlife Service said Thursday it will consider reclassifying the humpback chub as threatened within the next year.
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.
KUNC reporter Luke Runyon, who covers the Colorado River basin and water issues in the American West, explains why.
The National Weather Services says things could improve if more snow falls but winter precipitation so far has been far below normal.
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.
Overall, the river serves more than 40 million people in cities, farms and tribes in Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. Mexico also gets a share.
Historian Thomas Andrews’ book “Coyote Valley: A Deep History in the High Rockies,” focuses on a small part of Rocky Mountain National Park.
A New Yorker staff writer traveled the length of the river to see where all the water comes from, and where it ends up.