FILE - In this March 16, 2015 file photo, hikers stop and take photos along the Grand Canyon National Park's South Kaibab trail. Parks around the country are grappling with how best to expand service while preserving the pristine nature. One of the latest debates is playing out at the Grand Canyon, where park officials are road mapping future telecommunications towers. The handful that exist now are prominent among the park lodging, visitor center and residential area. (AP P…

April 29, 2020