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The Colorado River through the Grand Canyon National Park holds lessons for managing an essential and diminishing resource in a rapidly warming climate.

Understanding the springs is important because about a quarter of the world’s population relies on water that comes from karst systems.

Traveling along western rivers can give a glimpse into the power of erosion. The region’s deepest canyons were formed by moving water. But if you look closer, you can also see the ways humans have tried to control that process for their benefit, including some unconventional methods from decades ago that are still affecting waterways today.

Charismatic is hardly the best word to describe the humpback chub, a fish with a frowny eel face jammed onto a sportfish body in a way that suggests…

Park Superintendent Christine Lehnertz has been cleared of allegations of creating a hostile work environment in a report by the Inspector General of the Interior Department.

The head of Grand Canyon National Park is returning to her job after a four-month federal investigation found unspecified allegations against her were ...

A new safety campaign from Colorado State University’s communications and natural resources departments is teaching national park visitors about safe…

Across eight western states, voters increasingly consider themselves to be conservationists, according to a poll out Thursday from the Colorado College…