Google cameras map popular Grand Canyon trails Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 3:44 a.m., Wednesday, October 24, 2012 (AP) — Google and its street-view cameras already have taken users to narrow cobblestone alleys in Spain using a tricycle, inside the Smithsonian with a push cart and to British Columbia's snow-covered slopes by snowmobile. The move to capture the Grand Canyon comes after Apple chose to drop Google Maps from its mobile operating systems and opted to use its own mapping program that was derided for, among other things, poor directions and missing towns. The so-called trekker captures images every 2.5 seconds with 15 cameras that are 5 megapixels each, from the rest areas, the steep switchbacks, the change from juniper trees to scrub brush and the traffic that moves aside as a courtesy to mule riders. The GPS data is limited, so Google must compensate with sensors that record temperature, vibrations and the orientation of the device as it changes, before it stiches the images together and makes them available to users in a few months, Falor said. 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.