colorado river

Earth Notes
8:47 am
Wed October 8, 2014

Earth Notes: Wetlands Architect

The American beaver is an appealing animal, with dexterous paws, curious eyes and paddle-shaped tail. But, these rodents, the largest in North America, were nearly wiped out by the early 1900s as trappers sent mass quantities of the thick brown pelts back East for stylish top hats.

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Scott Thybony Commentaries
11:04 am
Wed April 2, 2014

Scott Thybony's Grand Canyon Commentary: River Dogs

Northern Arizona is full of river runners, many of whom take their dogs downriver with them. Whether it's the Verde or the Salt River, many a mutt has gone along for the ride. And though dogs aren't allowed on the Colorado River in the Grand Canyon, commentator Scott Thybony says that doesn't mean it hasn't been done.

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KNAU and Arizona News
5:00 pm
Thu February 6, 2014

No Upstream River Trips For Hualapai Tribe

The Colorado River near Diamond Creek, with Diamond Peak towering in the background.
Credit NAU Cline Library, Margaret Eiseman Collection

The Hualapai tribe has temporarily postponed upriver rafting trips in the Grand Canyon. As Arizona Public Radio’s Parker Olson reports, the suspension comes after the National Park Service voiced concerns about upriver travel.

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KNAU and Arizona News
9:00 am
Fri January 31, 2014

Controversial Development at the Confluence Takes a Step Forward

The confluence of the Little Colorado and Colorado rivers.
Credit "The Confluence" by George Mancuso

A proposed development project near the confluence of the Colorado and Little Colorado rivers is one step closer to becoming a reality. But, as Arizona Public Radio’s Ryan Heinsius reports, several key questions still remain about the controversial, multimillion-dollar development.

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KNAU and Arizona News
10:15 am
Wed November 21, 2012

River Running Record Attempt Aborted

Update Wednesday 11-21-12 10:06 am:  Harlan Taney has aborted his attempt to break the speed record for boating down the Colorado River through the Grand Canyon. 

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KNAU and Arizona News
9:19 am
Wed November 21, 2012

Flagstaff Man Tries to Break Colorado River Running Record

Colorado River in the Grand Canyon
Credit Marcin Klapczynski, 2004

While most of us were sleeping last night, a Flagstaff man was out to break a record.

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Fronteras
5:38 pm
Tue November 20, 2012

US And Mexico Make Water History

The United States and Mexico signed an historic agreement Tuesday to ration and protect Colorado River water.

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Fronteras
3:58 pm
Mon November 19, 2012

US, Mexico To Sign Landmark Colorado River Agreement

The U.S. stores emergency water for Mexico at Lake Mead, the reservoir behind Hoover Dam near Las Vegas.
Credit Laurel Morales

The Hoover Dam was built to control the powerful Colorado River, which for many years flooded farms and cities.

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KNAU and Arizona News
6:31 pm
Wed July 25, 2012

The Humpback Chub is Making a Comeback

Randall Babb Arizona Game and Fish Department

There was a time when scientists feared the demise of an ugly little fish called humpback chub, which has lived in southwestern rivers for millions of years. One of its last holdouts is in the Grand Canyon section of the Colorado River at a major tributary, the Little Colorado. Glen Canyon Dam took its toll on the little fish, and by the late 1990s, its population plummeted to a few thousand.

But these days, the humpback chub appears to be making a comeback.

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Fronteras
3:34 pm
Thu July 5, 2012

Simulated Floods Designed To Mitigate Dam Impacts

A group of paddlers prepare for their first rapid.
Laurel Morales

The Colorado River is about to run wild again, at least a couple times a year. In May, Interior Secretary Ken Salazar approved a series of simulated floods -- releasing huge amounts of water and sediment from the Glen Canyon Dam over the next several years. It’s all part of a long-studied effort to restore the river environment downstream.

Five boats recently launched a two-week Grand Canyon river trip. The group of tourists paddled white-water rapids, hiked side canyons and camped at river’s edge.

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