colorado river

Dry Winter Leads to Low Runoff in AZ Watersheds

Apr 10, 2018

One of the driest winters on record is leading to one of the lowest runoffs for Arizona’s watersheds. KNAU’s Justin Regan reports.


Doug Nering

Navigating the rapids of the Colorado River through the Grand Canyon is a big responsibility, especially when you’ve got a boat full of passengers … especially when those passengers are visually impaired. In this month’s Canyon Commentary, Scott Thybony recalls one of his final trips as a river guide. It was one of the most epic and memorable runs he ever made.


George Andrejko, AZGFD

The U.S. Fish and Wildlife Service says a fish native to the Colorado River is no longer in immediate danger of extinction. KNAU’s Melissa Sevigny reports the humpback chub will be reclassified as “threatened” instead of “endangered.”


Google Images

Imagine the thrill of being the first geologist to explore the Grand Canyon. That lucky individual—John Strong Newberry—wasn’t originally a rockhound but instead was a doctor from Ohio. 


Katie Walton-Day/U.S. Geological Survey via AP, file

U.S. scientists studying the effects of uranium mining around the Grand Canyon say they are lacking information on whether the radioactive element is hurting plants, animals and a water source for more than 30 million people.

Pages