Photos: University of Arizona Laboratory of Tree-Ring Research

This page contains photos from the Laboratory of Tree-Ring Research in the University of Arizona’s College of Science. The Laboratory of Tree-Ring Research is a...

Photos: Lees Ferry and Navajo Bridge, Arizona, December 2019

This page features photos of the Colorado River and Paria River at Lees Ferry, as well as nearby Navajo Bridge and Marble Canyon in...

Some of Arizona’s most valuable water could soon hit the market 

PARKER, Arizona – South of Headgate Rock Dam, beyond riverbanks lined with willow and mesquite, the broad floodplain of the Colorado River spreads across...

Colorado River crisis threatens crops, not Wyoming’s dam plans, experts say

Feds’ new plan doesn’t resolve crop-threatening water shortage and likely will end up in court, two professors reckon.

A new legal path for stream restoration in Colorado runs into old water conflicts

Projects repair degraded headwaters, but downstream users have concerns

Survey results: How Washington County residents feel about the Lake Powell Pipeline

A majority of survey respondents said they support the project but don’t want to pay for it and would conserve more water in order to avoid it.

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.

Anti-speculation working group digs in, as concern over profiteering continues

An 18-member work group charged with exploring ways to strengthen Colorado’s anti-speculation water laws is getting down to business.
The Crystal River flows through the town of Marble just after its confluence with Yule Creek

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.

Aspen joins water managers using new technologies to map mountain snowpack, predict streamflows

As a changing climate renders streamflow predictions less accurate, water managers are turning to new technologies for a clearer picture of what’s happening in their basin’s snowpack.