Upper Basin reservoirs near full, but Lake Mead and Powell remain critically low, deepening Southwest water supply concerns.

Moab groups sue to stop a large resort project, claiming it relies on forfeited water rights and threatens wildlife, recreation, and cultural sites.

A new model predicts shallow groundwater pollution in arid areas, even with limited data, by blending ecology, hydrology, and machine learning.

With wildfire danger rising, the Bureau of Reclamation has enacted fire restrictions across Arizona, Southern Nevada, and Southern California. The rules align with BLM orders and prohibit open...

Nevada rancher exposes illegal water use by lithium mine after permits revoked, sparking a state cease and desist and concerns over rushed project approvals.

Arizona’s bipartisan ag-to-urban law allows developers to use water from retired farmland to meet housing demand while conserving groundwater. Some rural leaders worry their water needs were left...