In the final month of spring, the movements of Colorado’s collared gray wolves continued to be spread across the Western ...

A new U.S. Geological Survey study identifies Wyoming’s western border as part of a massive geothermal reserve. Geologists ...

Overuse and climate change are rapidly depleting groundwater throughout the region, but aquifers are not part of the ...

In Cheyenne, Wyoming, one of the northernmost cities receiving Colorado River water, the state engineer and attorney general’s offices met with legislators on the select water committee last ...

Five years after the BLM’s brief stay in Grand Junction, the debate over moving agencies out of Washington is alive again.

By any measurement, June 14 is going to be a busy day. In Washington, D.C., the United States Army will hold a massive parade ...

A third reintroduced gray wolf from British Columbia has been found dead, this time in Rocky Mountain National Park. The U.S. Fish and Wildlife Service is investigating the death, as gray wolves ...

The stunning northern lights might be visible in certain US states for the second night in a row on Monday night. Also called ...

A female gray wolf was reported dead in northwest Colorado this week, becoming at least the seventh of the state’s reintroduced wolves to die. Colorado Parks and Wildlife did not indicate in its news ...

— Most of the total water losses occurred in the drier Lower Colorado River basin. It lost 20.7 million acre-feet of ...

I spotted signs of wealth in the luxury ski hub of Park City, Utah, from ski-in, ski-out housing to private dining globes and ...

The American Lung Association's annual air quality report shows that some of the most polluted air is in the areas around Las ...