Colorado River

Mike O'Callaghan - Pat Tillman Memorial Bridge bridge above the Colorado River near Hoover Dam (rear) connecting Nevada (left) and Arizona. (AP Photo)

Colorado River tops 2013 endangered waterways list

LAS VEGAS (AP) — An advocacy group is calling the Colorado River the nation’s most endangered waterway. An annual American Rivers report doesn’t call pollution the problem. It instead cites drought and demand.

04/17/2013

The Grand Canyon

Google maps now include trails at Grand Canyon

GRAND CANYON NATIONAL PARK, Ariz. (AP) — Google is giving people a way to virtually hike the Grand Canyon. The search giant released images Thursday that map the most popular trails at the park’s South Rim and other walkways.

01/31/2013

Tourists hike along the South Rim of the Grand Canyon with the North Rim in background, Arizona

Study: Grand Canyon formed during the dinosaur era

It’s the most common question visitors to the Grand Canyon ask: “How old is it?” A provocative new study suggests the natural wonder is much older than commonly believed. Using a new tool to date the age of rocks, a team of researchers contends the western section of the Grand Canyon may be 70 million years old.

11/29/2012

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