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Latest Colorado River Stories

2008-05-05 21:00:13

The owner of a Colorado snowmelt diversion ditch agreed Monday to pay $9 million to repair damage done to Rocky Mountain National Park when it breached. The U.S. Department of Justice and the National Park Service said the owner of the Grand River Ditch, Water Supply and Storage Co., agreed to the fine, levied to fund an environmental clean-up effort in the Kawuneeche Valley at the headwaters of the Colorado River. The ditch ruptured at an elevation of 10,175 feet in May 2003, sending...

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2008-03-07 00:00:00

Scientists from the University of Mexico reported Thursday that the Grand Canyon began being formed 17 million years ago, nearly three times longer than previous scientific consensus dating the canyon's formation to only 6 million years ago. The researchers based their conclusions on new findings obtained through a dating technique called uranium-lead isotope, which they used to date mineral deposits in the canyon's walls over a 9-state area.  The deposits came from cave formations in...

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2008-02-26 13:35:00

Government officials plan to stage the third artificial flood in the Grand Canyon next month with hopes of reversing some of the negative effects experienced by the local ecosystem which were caused by the construction of a nearby dam.In 1963, the Glen Canyon Dam was built, and it completely changed the composition of the Colorado River and abruptly caused the extinction of four fish species, leaving two others currently in danger as the nearby beaches are eroding because sediment is being...

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2008-02-12 15:15:00

Analysis of current and scheduled use and human-induced climate change sparks urgent warning from researchers at Scripps Institution of Oceanography, UC San DiegoThere is a 50 percent chance Lake Mead, a key source of water for millions of people in the southwestern United States, will be dry by 2021 if climate changes as expected and future water usage is not curtailed, according to a pair of researchers at Scripps Institution of Oceanography, UC San Diego. Without Lake Mead and neighboring...

2007-10-01 06:00:14

By Annette Wells By ANNETTE WELLS REVIEW-JOURNAL The death of an Arizona boy infected by an amoeba after swimming at Lake Havasu has caught the attention of officials responsible for Lake Mead, Lake Mohave and Nevada's hot springs. They want to know if those bodies of water also harbor the microscopic killer Naegleria fowleri, which enters the body through the nostrils and eats away brain tissue. They also want to know how much of a risk the microbe might pose to the thousands of Jet...

2007-05-21 03:00:17

By Marra, Bob California Secretary of Resources, Michael Chrisman, unveiled his preliminary plan to save and restore the Salton Sea to the Salton Sea Advisory Committee in Sacramento last week. The draft plan would create a 34,000-acre lake in the Sea's northern area, develop 62,000 acres of wildlife habitat in the south section and create 29,000 acres of brine sinks. In all, Chrisman's plan calls for a 45 percent reduction in the size of the actual Sea, including 109,000 acres of exposed...

2007-05-17 18:08:05

An epic drought during the mid-1100s dwarfs any drought previously documented for a region that includes areas of Arizona, Colorado, New Mexico, Utah and Wyoming. The six-decade-long drought was remarkable for the absence of very wet years.  At the core of the drought was a period of 25 years in which Colorado River flow averaged 15 percent below normal. The new tree-ring-based reconstruction documents the year-by-year natural variability of streamflows in the upper Colorado River basin...

2006-12-04 12:00:46

By Chris Woodka, The Pueblo Chieftain, Colo. Dec. 4--A water developer with plans to pipe Arkansas Valley water to the Denver metro area is playing a waiting game, and it may be years before the company seeks court approval, let alone build a pipeline. "It's a long-term project, no question," said Mark Harding, president of Thornton-based Pure Cycle Corp. Pure Cycle completed its purchase of Fort Lyon Canal farms and water rights from High Plains A&M in late August, but there is no...

2005-09-27 04:38:06

MEXICO CITY (Reuters) - Hundreds of islands in Mexico's Sea of Cortez, a major whale breeding ground, have been declared protected areas by the United Nations, the government said on Monday. The 244 islands, along with miles of mainland beaches in Mexico's Baja California, Sonora and Nayarit states, were declared World Heritage sites by the United Nations Educational Scientific and Cultural Organization, a presidential spokesman told reporters. The declaration does not impose new...

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2005-08-27 09:45:09

PHOENIX -- Great views "” and plenty of goosebumps for those afraid of heights. An American Indian tribe with land along the Grand Canyon is planning to build a glass-bottomed walkway that will jut out 70 feet from the canyon's edge. The horseshoe-shaped skywalk, expected to open in January, is part of the Hualapai Tribe's $40 million effort to turn 1,000 acres of reservation land into a tourist destination that will also feature an Indian village and Western-themed town. The tribe's...


Latest Colorado River Reference Libraries

Grand Canyon National Park
2013-03-19 15:03:05

Grand Canyon National Park is located in the American state of Arizona and is the country’s fifteenth established park. The main feature of the park is the Grand Canyon, which is a gorge of the Colorado River, and is often thought of as one of the Seven Natural Wonders of the World. The park contains 1,217,262 acres of land. It was established as an official national park in 1919, but the area was already well known as a landmark for thirty years. In 1903, President Theodore Roosevelt...

Colorado Squawfish, Ptychocheilus lucius
2013-01-12 06:47:45

Formally known as the Colorado squawfish, this freshwater species is now called the Colorado pikeminnow. This fish was native to Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming, as well as portions of Mexico, but with the natural habitat changed by the damming of rivers and streams, this fish is now restricted to the Colorado Basin. Limited numbers of the Colorado squawfish still remain in the following rivers: Green, Gunnison, White, San Juan and Yampa; additionally it...

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2009-01-13 19:58:20

The Bonytail Chub (Gila elegans) is a species of freshwater fish native to certain areas of Arizona, California, Colorado, Nevada and Utah in the United States. Bonytail chub prefer backwaters with rocky or muddy bottoms and flowing pools, although they have been reported in swiftly moving water. They are mostly restricted to rocky canyons today, but were historically abundant in the wide downstream sections of rivers. It is the rarest of the endemic big-river fishes of the Colorado River. It...

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2007-04-10 16:43:12

The Woundfin (Plagopterus argentissimus) is a species of minnow endemic to the Virgin River of the southwestern United States. It is a slender, silvery minnow, with a flattened head and belly, long snout, leathery skin, and no scales. There are barbels on the corners of its lips, and its common name likely comes from the first spinous ray of its dorsal fin, which is sharp-pointed. Its maximum length is rarely more than 3 in (7.5 cm). Historically, the Woundfin occupied much of the lower...

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Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.