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Google operations manager Steve Silverman stands along the
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Google operations manager Steve Silverman stands along the canyon wall wearing the Trekker during a demonstration for the media along the Bright Angel Trail at the South Rim of the Grand Canyon National Park in Arizona. Google is using the nearly 40-pound, backpack-sized camera unit to showcase the Grand Canyon's most popular hiking trails on the South Rim and other off-road sites. It's about 4 feet in height when set on the ground, and when worn, the camera system extends 2 feet above the operator's shoulders. (Oct. 22, 2012)(Credit: AP)

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Google cameras at Grand Canyon trails photos

Google and its street-view cameras were mounted for the first time on a backpack — down into the Grand Canyon, showcasing the attraction's most popular hiking trails on the South Rim and other walkways.