Staying safe with the Winter Storm Severity Index

This pragmatic tool from federal forecasters illustrates where snow, ice, and wind can be deadly and disruptive.

A feverish stream, a legion of volunteers, a $1.7 million grant. Is it enough...

Could something as simple and natural as a ragged corridor of expansive, towering shade trees help the Yampa River arm itself against climate change?

Local groups voice renewed interest in Crystal River Wild & Scenic designation

Residents of Colorado's Crystal River valley are reviving efforts to protect the upper portion of the river through a federal designation.

Data viz: explore our interactive dashboards for drought, precipitation and snowpack

These maps and visualizations let you interact with vital data on our water supply.

Brackish groundwater is no easy water solution for Arizona

Deep below Arizona sit large volumes of water that are less salty than the ocean, but not easily used. If it were all pumped to the surface and purified, this brackish groundwater would supply Arizona’s water needs for a century or more. Problem is, it can’t all be pumped.

Q&A: former top Interior Department officials assess agency under Trump

The Water Desk spoke with Rebecca Watson and John Leshy, who visited the University of Colorado Boulder campus recently for an armchair debate hosted by the Getches-Wilkinson Center.

Troubled waters

The Trump administration’s new definition of “waters of the United States” dramatically shrinks federal protection of many wetlands and waterways under the Clean Water Act. The rule change cuts red tape for farmers and developers but could threaten ecosystems and drinking water, especially in the arid West.

How Hudbay’s Santa Rita mining will impact Southern Arizona’s waterways

The proposed Copper World Complex mine is carving roads and berms that will impact wildlife and waterflow.

Photos: Central Arizona Project

This page features photos of the Central Arizona Project (CAP) canal, a cornerstone of Arizona's water supply. Created in 1968 by the Colorado River Basin...

The Colorado River got so low, rafting companies canceled this popular trip for the...

Most river rafting operators dabble in soothsaying. Every day, sometimes every hour, they closely study river flows and try to predict what kind of...