PHOTOS: Google Cameras Map Grand Canyon Trails

Google product manager Ryan Falor walks with the company's "Trekker" system during a demonstration along the Bright Angel Trail at Grand Canyon National Park in Arizona.
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What the images won't tell visitors is how much water they should carry down the trails, how to prepare for temperature changes, what type of food to bring and how much, and how best to protect the natural resources, park spokeswoman Maureen Oltrogge said.

"Stitched together with other information out there, the technology could be valuable," she said.

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