How many “boatable” days does a Colorado river possess? We’re about to find out
A prototype web tool uses historical data to give river users and water managers the ability to check an entire season’s flow forecast.
U.S. Army Corps won’t hold public hearing on marble quarry that relocated Yule Creek
The U.S. Army Corps of Engineers has denied local groups’ request for a public hearing in the case of a marble quarry that violated the Clean Water Act.
Hundreds of comments submitted over Holy Cross Wilderness water export proposal
Forty years after the Holy Cross Wilderness Area was created, an effort to explore tapping its water has generated more than 500 public comments.
Long troubled Salton Sea may finally be getting what it most needs: action —...
The shrinking desert lake has long been a trouble spot beset by rising salinity and unhealthy dust blowing from its increasingly exposed bed.
Photos: San Pedro River, Arizona
This page features photos of the San Pedro River in southeast Arizona, a hotspot for biological diversity.
The San Pedro River originates about 10 miles below the international border, just...
Photos: Vallecito Reservoir aerials, May 2024
This page in our free multimedia library features aerial photos of Vallecito Reservoir near Durango, Colorado.
The reservoir is located in the San Juan Mountains and along the Los Pinos...
Photos: Granite Reef Underground Storage Project, January 2019
This page features aerial photos of the Granite Reef Underground Storage Project (GRUSP), near Mesa, Arizona.
Roughly four miles downstream from the Granite Reef Diversion Dam, the GRUSP is a...
Colorado reservoirs down 25 percent as drought persists
Colorado’s reservoirs are 25 percent lower than they were last year at this time, as a hot, dry summer continues into the fall.
Data centers a small, but growing factor in Arizona’s water budget
BUCKEYE, Ariz. – It was supposed to be called Cipriani, a master planned community with more than 9,700 homes at the western fringe of this sprawling desert city in...
One crop uses more than half of Utah’s water. Here’s why.
By Brian Maffly and Mark Eddington, The Salt Lake Tribune
This article is the first in a series supported by The Water Desk, an independent journalism initiative based at the University of Colorado...