In this Oct. 22, 2012 photo, Google operations manager Steve Silverman walks with the Trekker during a demonstration for the media along the Bright Angel Trail at the South Rim of the Grand Canyon ... more 
In this Oct. 22, 2012 photo, Google operations manager Steve Silverman walks with 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. The search engine giant 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. (AP Photo/Rick Bowmer) less 
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Associated Press | Photo By Rick Bowmer
Wed, Oct 24, 2012 6:22 AM EDT