For more than 150 years, scientists have debated when and how the Colorado River first carved its way through the Grand ...
See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. An invasive fish has been stopped from taking over the Grand Canyon in ...
As the Colorado River and its once massive reservoirs shrink from overuse and climate change, officials are faced with a decision that pits conservation against ratepayer costs for electricity. To ...
Add Yahoo as a preferred source to see more of our stories on Google. Glen Canyon Dam managers will flush cold water from deep in Lake Powell into the Colorado River to help prevent invasive ...
PAGE — The U.S. Bureau of Reclamation has wrapped up its environmental review of a plan to help the humpback chub and other protected fish in northern Arizona, allowing the agency to release cold ...
The Dragon Bravo Fire burned across 150,000 acres and destroyed the historic lodge at the North Rim, but work to repair it started almost immediately.
USGS biologists tag humpback chub to monitor life in a changing Grand Canyon river. Biologist Lindsay Hansen and her USGS team work day and night to study the federally threatened humpback chub in the ...
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