Colorado River’s headwaters, with the northern ranges seeing an above-average snowpack peak, while the southern half of the state lagged behind with below-normal snowpack.

Dry spring weather is causing plants to use more snowmelt, reducing Colorado River streamflow. This explains why runoff ...

Current snowpack levels in the Upper Colorado River Basin hit 90% of normal on Friday, better than where snowpack stood on ...

It’s no secret that Arizona has been in long-term drought status for years. But how does this one compare historically?

Wells overpumping groundwater could be forcing rivers to seep underground, a new study shows. Regions with intensive irrigation activities are at the most risk.

Over the past century, its average streamflow has increased by about 40%, with multiple years since 1990 experiencing extremely high flow. Streamflow is affected by factors including precipitation ...

The recent opening of Waterworks Park in Pueblo has opened new opportunities for walking and fishing in the city. But a ...

Ore., introduced on Tuesday the Deschutes River Conservancy Reauthorization Act of 2025. The bill reauthorizes the Deschutes ...

In many parts of Brazil, rivers may be losing water to the ground instead of gaining from it. A recent study found that ...

Most of the annual streamflow in the western United States originates as snowfall that has accumulated in the mountains during the winter and early spring. As the snowpack accumulates, hydrologists ...